English verb conjugation
COULD REPAIR

Regular verb: repair - repaired - repaired

Affirmation

Simple form	V-ing form
I could repair you could repair she could repair we could repair you could repair they could repair	I could be repairing you could be repairing she could be repairing we could be repairing you could be repairing they could be repairing
Perfect	V-ing perfect
I could have repaired you could have repaired she could have repaired we could have repaired you could have repaired they could have repaired	I could have been repairing you could have been repairing she could have been repairing we could have been repairing you could have been repairing they could have been repairing

Negation

Simple form	V-ing form
I couldn't repair you couldn't repair she couldn't repair we couldn't repair you couldn't repair they couldn't repair	I couldn't be repairing you couldn't be repairing she couldn't be repairing we couldn't be repairing you couldn't be repairing they couldn't be repairing
Perfect	V-ing perfect
I couldn't have repaired you couldn't have repaired she couldn't have repaired we couldn't have repaired you couldn't have repaired they couldn't have repaired	I couldn't have been repairing you couldn't have been repairing she couldn't have been repairing we couldn't have been repairing you couldn't have been repairing they couldn't have been repairing

Interrogative form

Simple form	V-ing form
could I repair? could you repair? could she repair? could we repair? could you repair? could they repair?	could I be repairing? could you be repairing? could she be repairing? could we be repairing? could you be repairing? could they be repairing?
Perfect	V-ing perfect
could I have repaired? could you have repaired? could she have repaired? could we have repaired? could you have repaired? could they have repaired?	could I have been repairing? could you have been repairing? could she have been repairing? could we have been repairing? could you have been repairing? could they have been repairing?

Interro-negative form

Simple form	V-ing form
couldn't I repair? couldn't you repair? couldn't she repair? couldn't we repair? couldn't you repair? couldn't they repair?	couldn't I be repairing? couldn't you be repairing? couldn't she be repairing? couldn't we be repairing? couldn't you be repairing? couldn't they be repairing?
Perfect	V-ing perfect
couldn't I have repaired? couldn't you have repaired? couldn't she have repaired? couldn't we have repaired? couldn't you have repaired? couldn't they have repaired?	couldn't I have been repairing? couldn't you have been repairing? couldn't she have been repairing? couldn't we have been repairing? couldn't you have been repairing? couldn't they have been repairing?