English verb conjugation
COULD CONTRACT

Regular verb: contract - contracted - contracted

Affirmation

Simple form	V-ing form
I could contract you could contract he could contract we could contract you could contract they could contract	I could be contracting you could be contracting he could be contracting we could be contracting you could be contracting they could be contracting
Perfect	V-ing perfect
I could have contracted you could have contracted he could have contracted we could have contracted you could have contracted they could have contracted	I could have been contracting you could have been contracting he could have been contracting we could have been contracting you could have been contracting they could have been contracting

Negation

Simple form	V-ing form
I couldn't contract you couldn't contract he couldn't contract we couldn't contract you couldn't contract they couldn't contract	I couldn't be contracting you couldn't be contracting he couldn't be contracting we couldn't be contracting you couldn't be contracting they couldn't be contracting
Perfect	V-ing perfect
I couldn't have contracted you couldn't have contracted he couldn't have contracted we couldn't have contracted you couldn't have contracted they couldn't have contracted	I couldn't have been contracting you couldn't have been contracting he couldn't have been contracting we couldn't have been contracting you couldn't have been contracting they couldn't have been contracting

Interrogative form

Simple form	V-ing form
could I contract? could you contract? could he contract? could we contract? could you contract? could they contract?	could I be contracting? could you be contracting? could he be contracting? could we be contracting? could you be contracting? could they be contracting?
Perfect	V-ing perfect
could I have contracted? could you have contracted? could he have contracted? could we have contracted? could you have contracted? could they have contracted?	could I have been contracting? could you have been contracting? could he have been contracting? could we have been contracting? could you have been contracting? could they have been contracting?

Interro-negative form

Simple form	V-ing form
couldn't I contract? couldn't you contract? couldn't he contract? couldn't we contract? couldn't you contract? couldn't they contract?	couldn't I be contracting? couldn't you be contracting? couldn't he be contracting? couldn't we be contracting? couldn't you be contracting? couldn't they be contracting?
Perfect	V-ing perfect
couldn't I have contracted? couldn't you have contracted? couldn't he have contracted? couldn't we have contracted? couldn't you have contracted? couldn't they have contracted?	couldn't I have been contracting? couldn't you have been contracting? couldn't he have been contracting? couldn't we have been contracting? couldn't you have been contracting? couldn't they have been contracting?