A modal is a type of auxiliary verb which is used to express the certainty of following verb. For example 'You must go to bed by 10pm', 'You will find it under the sink', 'You might hurt yourself if you do that'. In these case the modals must, will, might, express the certainty of the verbs go, find and hurt.
Sory ... I dont know
function of modals
kinds of modals
Basic modals (can, could, may, might, must, should, ought to, have to, have got to, had better).................. for the study and teaching of English as a second language.
Paul Westney has written: 'Modals and periphrastics in English' -- subject(s): English language, Verb, Modality
I already see answers about modals and if you want to read more about it, here it is https : //ivypanda . com/essays/modals-in-different-varieties-of-english/. As for an example of such essays, there are plenty of them on different sites. They are written by the authors in short literary composition and that's all.
the full form of dgsnd is directorate general supplies and disposals. it is the rate contract for some specific modals like (with some specific desktop modals, some laptop modals, with some workstation modals. it is valid upto 31/12/2012.
It is used to do maths
model tanga
Modals are special verbs that give more information about the function of the main verb...The main uses: PossibilityAbilityPermissionObligation
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an auxiliary verb that expresses necessity or possibility. English modal verbs include must, shall, will, should, would, can, could, may, and might.