Els verbs auxiliars modals són can, could, will, would, shall, should, may, might, must i ought. Tots (tret d'ought) es formen seguint l'esquema verb modal + infinitiu tot sol, p. ex.:
![]() | I can swim. Error:
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![]() | They should listen. Error:
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![]() | You must come. Error:
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Quan es fa servir el verb ought, l'esquema que se segueix és verb modal + to + infinitiu, p. ex.:
![]() | You ought to go. (Te n'hauries d'anar.) |
Els auxiliars modals són verbs incomplets: no tenen infinitiu i no tenen una forma diferent per a la tercera persona singular en el present. Per tant, no hi ha formes com ara:
![]() | Es diu: She will be able to come. Error:
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![]() | Es diu: They will have to work. Error:
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Tampoc hi ha formes com les que us presentem a continuació:
![]() | Es diu: She can come. Error:
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![]() | Es diu: He must work. Error:
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Les formes negatives es formen amb not, i algunes tenen una forma contracta (contraction):
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Vegeu |
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can |
cannot / can not |
can't |
Permission, Advice, Obligation and prohibition |
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could |
could not |
couldn't |
Permission, Advice, Obligation and prohibition |
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will |
will not |
won't |
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shall |
shall not |
shan't |
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should |
should not |
shouldn't |
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would |
would not |
wouldn't |
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may |
may not |
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might |
might not |
mightn't |
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must |
must not |
mustn't |
Permission, Advice, Obligation and prohibition |
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ought |
ought not |
oughtn't |