English verb conjugation
COULD MICROFILM

Regular verb: microfilm - microfilmed - microfilmed

Affirmation

Simple form	V-ing form
I could microfilm you could microfilm he could microfilm we could microfilm you could microfilm they could microfilm	I could be microfilming you could be microfilming he could be microfilming we could be microfilming you could be microfilming they could be microfilming
Perfect	V-ing perfect
I could have microfilmed you could have microfilmed he could have microfilmed we could have microfilmed you could have microfilmed they could have microfilmed	I could have been microfilming you could have been microfilming he could have been microfilming we could have been microfilming you could have been microfilming they could have been microfilming

Negation

Simple form	V-ing form
I couldn't microfilm you couldn't microfilm he couldn't microfilm we couldn't microfilm you couldn't microfilm they couldn't microfilm	I couldn't be microfilming you couldn't be microfilming he couldn't be microfilming we couldn't be microfilming you couldn't be microfilming they couldn't be microfilming
Perfect	V-ing perfect
I couldn't have microfilmed you couldn't have microfilmed he couldn't have microfilmed we couldn't have microfilmed you couldn't have microfilmed they couldn't have microfilmed	I couldn't have been microfilming you couldn't have been microfilming he couldn't have been microfilming we couldn't have been microfilming you couldn't have been microfilming they couldn't have been microfilming

Interrogative form

Simple form	V-ing form
could I microfilm? could you microfilm? could he microfilm? could we microfilm? could you microfilm? could they microfilm?	could I be microfilming? could you be microfilming? could he be microfilming? could we be microfilming? could you be microfilming? could they be microfilming?
Perfect	V-ing perfect
could I have microfilmed? could you have microfilmed? could he have microfilmed? could we have microfilmed? could you have microfilmed? could they have microfilmed?	could I have been microfilming? could you have been microfilming? could he have been microfilming? could we have been microfilming? could you have been microfilming? could they have been microfilming?

Interro-negative form

Simple form	V-ing form
couldn't I microfilm? couldn't you microfilm? couldn't he microfilm? couldn't we microfilm? couldn't you microfilm? couldn't they microfilm?	couldn't I be microfilming? couldn't you be microfilming? couldn't he be microfilming? couldn't we be microfilming? couldn't you be microfilming? couldn't they be microfilming?
Perfect	V-ing perfect
couldn't I have microfilmed? couldn't you have microfilmed? couldn't he have microfilmed? couldn't we have microfilmed? couldn't you have microfilmed? couldn't they have microfilmed?	couldn't I have been microfilming? couldn't you have been microfilming? couldn't he have been microfilming? couldn't we have been microfilming? couldn't you have been microfilming? couldn't they have been microfilming?