Search results
Results from the WOW.Com Content Network
The English modal auxiliary verbs are a subset of the English auxiliary verbs used mostly to express modality, properties such as possibility and obligation. [a] They can most easily be distinguished from other verbs by their defectiveness (they do not have participles or plain forms [b]) and by their lack of the ending ‑(e)s for the third-person singular.
A modal verb is a type of verb that contextually indicates a modality such as a likelihood, ability, permission, request, capacity, suggestion, order, obligation, necessity, possibility or advice. Modal verbs generally accompany the base (infinitive) form of another verb having semantic content. [1]
Modals can indicate the condition, probability, possibility, necessity, obligation and ability exposed by the speaker's or writer's attitude or expression. [ 21 ] The copula be , along with the modal verbs and the other auxiliaries , form a distinct class, sometimes called " special verbs " or simply "auxiliaries". [ 22 ]
The modal base here is the knowledge of the speaker, the modal force is necessity. By contrast, (5) could be paraphrased as 'Given his abilities, the strength of his teeth, etc., it is possible for John to open a beer bottle with his teeth'. Here, the modal base is defined by a subset of John's abilities, the modal force is possibility.
Germanic languages tend to have two morphologically distinct simple forms, for past and non-past, as well as a compound construction for the past or for the perfect, and they use modal auxiliary verbs. The simple forms, the first part of the non-modal compound form, and possibly the modal auxiliaries, are usually conjugated for person and/or ...
One kind of modal word is the modal verb (should, can, might, and ought, as well as oblige, need, and require). Other types of modal words in English include modal adjectives (likely, probable, necessary), modal adverbs (probably, perhaps, certainly), modal prepositions (despite, unless, if), and modal nouns (possibility, probability, certainty).
Within English, the modal verb will is also related to the noun will and the regular lexical verb will (as in "She willed him on"). Early Germanic did not inherit any Proto-Indo-European forms to express the future tense , and so the Germanic languages have innovated by using auxiliary verbs to express the future (this is evidenced in Gothic ...
Precisely what axioms and rules must be added to the propositional calculus to create a usable system of modal logic is a matter of philosophical opinion, often driven by the theorems one wishes to prove; or, in computer science, it is a matter of what sort of computational or deductive system one wishes to model.