English verb conjugation
COULD DEFORCE

Regular verb: deforce - deforced - deforced

Affirmation

Simple form	V-ing form
I could deforce you could deforce she could deforce we could deforce you could deforce they could deforce	I could be deforcing you could be deforcing she could be deforcing we could be deforcing you could be deforcing they could be deforcing
Perfect	V-ing perfect
I could have deforced you could have deforced she could have deforced we could have deforced you could have deforced they could have deforced	I could have been deforcing you could have been deforcing she could have been deforcing we could have been deforcing you could have been deforcing they could have been deforcing

Negation

Simple form	V-ing form
I couldn't deforce you couldn't deforce she couldn't deforce we couldn't deforce you couldn't deforce they couldn't deforce	I couldn't be deforcing you couldn't be deforcing she couldn't be deforcing we couldn't be deforcing you couldn't be deforcing they couldn't be deforcing
Perfect	V-ing perfect
I couldn't have deforced you couldn't have deforced she couldn't have deforced we couldn't have deforced you couldn't have deforced they couldn't have deforced	I couldn't have been deforcing you couldn't have been deforcing she couldn't have been deforcing we couldn't have been deforcing you couldn't have been deforcing they couldn't have been deforcing

Interrogative form

Simple form	V-ing form
could I deforce? could you deforce? could she deforce? could we deforce? could you deforce? could they deforce?	could I be deforcing? could you be deforcing? could she be deforcing? could we be deforcing? could you be deforcing? could they be deforcing?
Perfect	V-ing perfect
could I have deforced? could you have deforced? could she have deforced? could we have deforced? could you have deforced? could they have deforced?	could I have been deforcing? could you have been deforcing? could she have been deforcing? could we have been deforcing? could you have been deforcing? could they have been deforcing?

Interro-negative form

Simple form	V-ing form
couldn't I deforce? couldn't you deforce? couldn't she deforce? couldn't we deforce? couldn't you deforce? couldn't they deforce?	couldn't I be deforcing? couldn't you be deforcing? couldn't she be deforcing? couldn't we be deforcing? couldn't you be deforcing? couldn't they be deforcing?
Perfect	V-ing perfect
couldn't I have deforced? couldn't you have deforced? couldn't she have deforced? couldn't we have deforced? couldn't you have deforced? couldn't they have deforced?	couldn't I have been deforcing? couldn't you have been deforcing? couldn't she have been deforcing? couldn't we have been deforcing? couldn't you have been deforcing? couldn't they have been deforcing?