English verb conjugation
COULD CONVERT

Regular verb: convert - converted - converted

Affirmation

Simple form	V-ing form
I could convert you could convert she could convert we could convert you could convert they could convert	I could be converting you could be converting she could be converting we could be converting you could be converting they could be converting
Perfect	V-ing perfect
I could have converted you could have converted she could have converted we could have converted you could have converted they could have converted	I could have been converting you could have been converting she could have been converting we could have been converting you could have been converting they could have been converting

Negation

Simple form	V-ing form
I could not convert you could not convert she could not convert we could not convert you could not convert they could not convert	I could not be converting you could not be converting she could not be converting we could not be converting you could not be converting they could not be converting
Perfect	V-ing perfect
I could not have converted you could not have converted she could not have converted we could not have converted you could not have converted they could not have converted	I could not have been converting you could not have been converting she could not have been converting we could not have been converting you could not have been converting they could not have been converting

Interrogative form

Simple form	V-ing form
could I convert? could you convert? could she convert? could we convert? could you convert? could they convert?	could I be converting? could you be converting? could she be converting? could we be converting? could you be converting? could they be converting?
Perfect	V-ing perfect
could I have converted? could you have converted? could she have converted? could we have converted? could you have converted? could they have converted?	could I have been converting? could you have been converting? could she have been converting? could we have been converting? could you have been converting? could they have been converting?

Interro-negative form

Simple form	V-ing form
could I not convert? could you not convert? could she not convert? could we not convert? could you not convert? could they not convert?	could I not be converting? could you not be converting? could she not be converting? could we not be converting? could you not be converting? could they not be converting?
Perfect	V-ing perfect
could I not have converted? could you not have converted? could she not have converted? could we not have converted? could you not have converted? could they not have converted?	could I not have been converting? could you not have been converting? could she not have been converting? could we not have been converting? could you not have been converting? could they not have been converting?