English verb conjugation
COULD RETILE

Regular verb: retile - retiled - retiled

Affirmation

Simple form	V-ing form
I could retile you could retile she could retile we could retile you could retile they could retile	I could be retiling you could be retiling she could be retiling we could be retiling you could be retiling they could be retiling
Perfect	V-ing perfect
I could have retiled you could have retiled she could have retiled we could have retiled you could have retiled they could have retiled	I could have been retiling you could have been retiling she could have been retiling we could have been retiling you could have been retiling they could have been retiling

Negation

Simple form	V-ing form
I could not retile you could not retile she could not retile we could not retile you could not retile they could not retile	I could not be retiling you could not be retiling she could not be retiling we could not be retiling you could not be retiling they could not be retiling
Perfect	V-ing perfect
I could not have retiled you could not have retiled she could not have retiled we could not have retiled you could not have retiled they could not have retiled	I could not have been retiling you could not have been retiling she could not have been retiling we could not have been retiling you could not have been retiling they could not have been retiling

Interrogative form

Simple form	V-ing form
could I retile? could you retile? could she retile? could we retile? could you retile? could they retile?	could I be retiling? could you be retiling? could she be retiling? could we be retiling? could you be retiling? could they be retiling?
Perfect	V-ing perfect
could I have retiled? could you have retiled? could she have retiled? could we have retiled? could you have retiled? could they have retiled?	could I have been retiling? could you have been retiling? could she have been retiling? could we have been retiling? could you have been retiling? could they have been retiling?

Interro-negative form

Simple form	V-ing form
could I not retile? could you not retile? could she not retile? could we not retile? could you not retile? could they not retile?	could I not be retiling? could you not be retiling? could she not be retiling? could we not be retiling? could you not be retiling? could they not be retiling?
Perfect	V-ing perfect
could I not have retiled? could you not have retiled? could she not have retiled? could we not have retiled? could you not have retiled? could they not have retiled?	could I not have been retiling? could you not have been retiling? could she not have been retiling? could we not have been retiling? could you not have been retiling? could they not have been retiling?