A
modal verb is a type of
auxiliary verbIn linguistics, an auxiliary verb is a verb that gives further semantic or syntactic information about a main or full verb. In English, the extra meaning provided by an auxiliary verb alters the basic meaning of the main verb to make it have one or more of the following functions: passive voice,...
that is used to indicate
modalityIn linguistics, modality is what allows speakers to evaluate a proposition relative to a set of other propositions.In standard formal approaches to modality, an utterance expressing modality can always roughly be paraphrased to fit the following template:...
-- that is, likelihood, ability, permission, and obligation. The use of auxiliary verbs to express modality is particularly characteristic of
Germanic languagesThe Germanic languages constitute a sub-branch of the Indo-European language family. The common ancestor of all of the languages in this branch is called Proto-Germanic , which was spoken in approximately the mid-1st millennium BC in Iron Age northern Europe...
.
Function
Modal auxiliary verbs give more information about the function of the main
verbA verb, from the Latin verbum meaning word, is a word that in syntax conveys an action , or a state of being . In the usual description of English, the basic form, with or without the particle to, is the infinitive...
that follows it. Although having a great variety of communicative functions, these functions can all be related to a scale ranging from possibility ("may") to necessity ("must"). Within this scale there are two functional divisions:
- epistemic, concerned with the theoretical possibility of propositions being true or not true (including likelihood, and certainty); and
- deontic, concerned with possibility and necessity in terms of freedom to act (including ability, permission, and duty)
The following sentences illustrate the two uses of
must:
- epistemic: You must be starving. (= "It is necessarily the case that you are starving.")
- deontic: You must leave now. (= "You are required to leave now.")
- ambiguous: You must speak Spanish.
- epistemic = "It is surely the case that you speak Spanish (e.g., after having lived in Spain for ten years)."
- deontic = "It is a requirement that you speak Spanish (e.g., if you want to get a job in Spain)."
Epistemic modals can be analyzed as
raising verbIn linguistics, raising is a form of argument control in which an argument that belongs semantically to a subordinate clause is realized syntactically as a constituent of a higher clause...
s, while deontic modals can be analyzed as
control verbIn linguistics, a control construction is a clause that contains a main clause , the predicate of which has two complements — an embedded clause complement and a nominal complement that acts as the semantic argument of the main clause and of the embedded clause...
s.
Another use of modal auxiliaries is to indicate "dynamic modality", which refers to properties such as ability or disposition. Some examples of this are "can" in English, "können" in German, and "possum" in Latin. For example, "I can say that in English," "Ich kann das auf Deutsch sagen," and "Illud Latine dicere possum."
List of Germanic etymological relatives
The table below lists some modal verbs with common roots in
EnglishEnglish is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...
,
GermanGerman is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....
and
DutchDutch is a West Germanic language and the native language of the majority of the population of the Netherlands, Belgium, and Suriname, the three member states of the Dutch Language Union. Most speakers live in the European Union, where it is a first language for about 23 million and a second...
.
English modal auxiliary verbIn the English language, a modal verb is a type of auxiliary verb. The key way to identify a modal verb is by its defectiveness...
provides an exhaustive list of modal verbs in English, and German verb#Modal verbs provides a list for German, with translations. Dutch verbs#Irregular verbs gives conjugations for some Dutch modals.
Words in the same row of the table below share the same
etymologicalEtymology is the study of the history of words, their origins, and how their form and meaning have changed over time.For languages with a long written history, etymologists make use of texts in these languages and texts about the languages to gather knowledge about how words were used during...
root. Because of semantic drift, however, words in the same row may no longer be proper translations of each other. In addition, the English and German verbs
will are completely different in meaning, and the German one has nothing to do with constructing the future tense. These words are
false friendFalse friends are pairs of words or phrases in two languages or dialects that look or sound similar, but differ in meaning....
s.
In English, the plural and singular forms are identical. For German and Dutch, both the plural and singular form of the verb are shown.
Etymological relatives (not translations)>
English |
German |
Dutch |
| can |
können, kann |
kunnen, kan |
| shall |
sollen, soll |
zullen, zal |
| will |
wollen, will |
willen, wil |
| must |
müssen, muss |
moeten, moet |
| may |
mögen, mag |
mogen, mag |
| tharf |
dürfen, darf |
durven, durf |
The English
could is the preterite form of
can;
should is the preterite of
shall; and
might is the preterite of
may. (This is ignoring the use of "may" as a vestige of the subjunctive mood in English.) These verbs have acquired an independent, present tense meaning. The German verb
möchten is sometimes taught as a vocabulary word and included in the list of modal verbs, but it is actually the past subjunctive form of
mögen.
The English verbs
dare and
need have both a modal use (
he dare not do it), and a non-modal use (
he doesn't dare to do it). The Dutch verb
durven is not considered a modal (but it is there, nevertheless) because its modal use has disappeared, but it has a non-modal use analogous with the English
dare. Some English modals consist of more than one word, such as "had better" and "would rather".
Some other English verbs express modality although they are not modal verbs because they are not auxiliaries, including
want,
wish,
hope, and
like. All of these differ from the modals in English (with the disputed exception of
ought (to)) in that the associated main verb takes its long infinitive form with the particle
to rather than its short form without
to, and in that they are fully conjugated.
Morphology and syntax
Germanic modal verbs are preterite-present verbs, which means that their present tense has the form of a vocalic preterite. This is the source of the vowel alternation between singular and plural in German and Dutch. Because of their preterite origins, modal verbs also lack the suffix (-s in modern English, -t in German and Dutch) that would normally mark the third person singular form:
| |
normal verb |
modal verb |
| English |
he works |
he can |
| German |
er arbeitet |
er kann |
| Dutch |
hij werkt |
hij kan |
The main verb that is modified by the modal verb is in the infinitive form and is
not preceded by the word
to (German:
zu, Dutch:
te). There are verbs that may seem somewhat similar in meaning to modal verbs (e.g.
like,
want), but the construction with such verbs would be different:
| |
normal verb |
modal verb |
| English |
he tries to work |
he can work |
| German |
er versucht zu arbeiten |
er kann arbeiten |
| Dutch |
hij probeert te werken |
hij kan werken |
In English, main verbs but not modal verbs always require the auxiliary verb
do to form negations and questions, and
do can be used with main verbs to form emphatic affirmative statements. Neither negations nor questions in early modern English used to require
do.
| |
normal verb |
modal verb |
| affirmative |
he works |
he can work |
| negation |
he does not work |
he cannot work |
| emphatic |
he does work hard |
he can work hard |
| question |
does he work here? |
can he work at all? |
| negation + question |
does he not work here? |
can he not work at all? |
(German never uses "do" as an auxiliary verb for any function; Dutch uses "do" as an auxiliary, but only in colloquial speech)
In English, modal verbs are called
defective verbIn linguistics, a defective verb is a verb which is missing e.g. a past tense, or cannot be used in some other way that normal verbs come. Formally, it is a verb with an incomplete conjugation. Defective verbs cannot be conjugated in certain tenses, aspects, or moods.-Arabic:In Arabic, defective...
s because of their incomplete conjugation: they have a narrower range of functions than ordinary verbs. For example, most have no infinitive or gerund.
Evolution of modals
Deontic (agent-oriented) usages of modals tend to develop earlier than epistemic uses, and the former give rise to the latter. For example, the inferred certainty sense of English "must" developed after the strong obligation sense; the probabilistic sense of "should" developed after the weak obligation sense; and the possibility sense of "may" and "can" developed later than the permission or ability sense. Two typical sequences of evolution of modal meanings are:
- internal mental ability → internal ability → root possibility (internal or external ability) → permission and epistemic possibility
- obligation → probability
Hawaiian Creole English
Hawaiian Creole English is a
creole languageA creole language, or simply a creole, is a stable natural language developed from the mixing of parent languages; creoles differ from pidgins in that they have been nativized by children as their primary language, making them have features of natural languages that are normally missing from...
most of whose vocabulary, but not grammar, is drawn from English. As is generally the case with creole languages, it is an
isolating languageAn isolating language is a type of language with a low morpheme-per-word ratio — in the extreme case of an isolating language words are composed of a single morpheme...
and modality is typically indicated by the use of invariant pre-verbal auxiliaries. The invariance of the modal auxiliaries to person, number, and tense makes them analogous to modal auxiliaries in English. However, as in most creoles the main verbs are also invariant; the auxiliaries are distinguished by their use in combination with (followed by) a main verb.
There are various preverbal modal auxiliaries:
kaen "can",
laik "want to",
gata "have got to",
haeftu "have to",
baeta "had better",
sapostu "am/is/are supposed to". Unlike in Germanic languages, tense markers are used, albeit infrequently, before modals:
gon kaen kam "is going to be able to come".
Waz "was" can indicate past tense before the future/volitional marker
gon and the modal
sapostu:
Ai waz gon lift weits "I was gonna lift weights";
Ai waz sapostu go "I was supposed to go".
Hawaiian
HawaiianThe Hawaiian language is a Polynesian language that takes its name from Hawaii, the largest island in the tropical North Pacific archipelago where it developed. Hawaiian, along with English, is an official language of the state of Hawaii...
, like the
Polynesian languagesThe Polynesian languages are a language family spoken in the region known as Polynesia. They are classified as part of the Austronesian family, belonging to the Oceanic branch of that family. They fall into two branches: Tongic and Nuclear Polynesian. Polynesians share many cultural traits...
generally, is an isolating language, so its verbal grammar exclusively relies on unconjugated verbs. Thus, as with creoles, there is no real distinction between modal auxiliaries and lexically modal main verbs that are followed by another main verb. Hawaiian has an imperative indicated by
e + verb (or in the negative by
mai + verb). Some examples of the treatment of modality are as follows:
Pono conveys obligation/necessity as in
He pono i na kamali'i a pau e maka'ala, "It's right for children all to beware", "All children should/must beware"; ability is conveyed by
hiki as in
Ua hiki i keia kamali'i ke heluhelu "Has enabled to this child to read", "This child can read".
French
FrenchFrench is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...
, like other
Romance languagesThe Romance languages are a branch of the Indo-European language family, more precisely of the Italic languages subfamily, comprising all the languages that descend from Vulgar Latin, the language of ancient Rome...
, has no modal auxiliary verbs; instead, it expresses modality using conjugated verbs followed by infinitives: for example,
pouvoir "to be able" (
Je peux aller, "I can go"),
devoir "to have an obligation" (
Je dois aller, "I should go"), and
vouloir "to want" (
Je veux aller "I want to go").
Mandarin Chinese
Mandarin Chinese is an isolating language without inflections. As in English, modality can be indicated either lexically, with main verbs such as
yào "want" followed by another main verb, or with auxiliary verbs. In Mandarin the auxiliary verbs have six properties that distinguish them from main verbs:
- They must co-occur with a verb (or an understood verb).
- They cannot be accompanied by aspect markers.
- They cannot be modified by intensifiers such as "very".
- They cannot be nominalized (used in phrases meaning, for example, "one who can")
- They cannot occur before the subject.
- They cannot take a direct object.
The complete list of modal auxiliary verbs consists of
- three meaning "should",
- four meaning "be able to",
- two meaning "have permission to",
- one meaning "dare",
- one meaning "be willing to",
- four meaning "must" or "ought to", and
- one meaning "will" or "know how to".
See also
- English modal auxiliary verb
In the English language, a modal verb is a type of auxiliary verb. The key way to identify a modal verb is by its defectiveness...
- Grammatical mood
In linguistics, grammatical mood is a grammatical feature of verbs, used to signal modality. That is, it is the use of verbal inflections that allow speakers to express their attitude toward what they are saying...
- Linguistic modality
In linguistics, modality is what allows speakers to evaluate a proposition relative to a set of other propositions.In standard formal approaches to modality, an utterance expressing modality can always roughly be paraphrased to fit the following template:...
- Modal logic
Modal logic is a type of formal logic that extends classical propositional and predicate logic to include operators expressing modality. Modals — words that express modalities — qualify a statement. For example, the statement "John is happy" might be qualified by saying that John is...
- Semi-modal
Semi-modals are multi-word constructions that function like modal verbs. Examples include:* had better* have to* ought to* be going to* used to...
- List of English auxiliary verbs
External links