English verb conjugation
COULD CONJUGATE

Regular verb: conjugate - conjugated - conjugated

Affirmation

Simple form	V-ing form
I could conjugate you could conjugate she could conjugate we could conjugate you could conjugate they could conjugate	I could be conjugating you could be conjugating she could be conjugating we could be conjugating you could be conjugating they could be conjugating
Perfect	V-ing perfect
I could have conjugated you could have conjugated she could have conjugated we could have conjugated you could have conjugated they could have conjugated	I could have been conjugating you could have been conjugating she could have been conjugating we could have been conjugating you could have been conjugating they could have been conjugating

Negation

Simple form	V-ing form
I couldn't conjugate you couldn't conjugate she couldn't conjugate we couldn't conjugate you couldn't conjugate they couldn't conjugate	I couldn't be conjugating you couldn't be conjugating she couldn't be conjugating we couldn't be conjugating you couldn't be conjugating they couldn't be conjugating
Perfect	V-ing perfect
I couldn't have conjugated you couldn't have conjugated she couldn't have conjugated we couldn't have conjugated you couldn't have conjugated they couldn't have conjugated	I couldn't have been conjugating you couldn't have been conjugating she couldn't have been conjugating we couldn't have been conjugating you couldn't have been conjugating they couldn't have been conjugating

Interrogative form

Simple form	V-ing form
could I conjugate? could you conjugate? could she conjugate? could we conjugate? could you conjugate? could they conjugate?	could I be conjugating? could you be conjugating? could she be conjugating? could we be conjugating? could you be conjugating? could they be conjugating?
Perfect	V-ing perfect
could I have conjugated? could you have conjugated? could she have conjugated? could we have conjugated? could you have conjugated? could they have conjugated?	could I have been conjugating? could you have been conjugating? could she have been conjugating? could we have been conjugating? could you have been conjugating? could they have been conjugating?

Interro-negative form

Simple form	V-ing form
couldn't I conjugate? couldn't you conjugate? couldn't she conjugate? couldn't we conjugate? couldn't you conjugate? couldn't they conjugate?	couldn't I be conjugating? couldn't you be conjugating? couldn't she be conjugating? couldn't we be conjugating? couldn't you be conjugating? couldn't they be conjugating?
Perfect	V-ing perfect
couldn't I have conjugated? couldn't you have conjugated? couldn't she have conjugated? couldn't we have conjugated? couldn't you have conjugated? couldn't they have conjugated?	couldn't I have been conjugating? couldn't you have been conjugating? couldn't she have been conjugating? couldn't we have been conjugating? couldn't you have been conjugating? couldn't they have been conjugating?