English verb conjugation
COULD IRIS

Regular verb: iris - irised - irised

Affirmation

Simple form	V-ing form
I could iris you could iris she could iris we could iris you could iris they could iris	I could be irising you could be irising she could be irising we could be irising you could be irising they could be irising
Perfect	V-ing perfect
I could have irised you could have irised she could have irised we could have irised you could have irised they could have irised	I could have been irising you could have been irising she could have been irising we could have been irising you could have been irising they could have been irising

Negation

Simple form	V-ing form
I could not iris you could not iris she could not iris we could not iris you could not iris they could not iris	I could not be irising you could not be irising she could not be irising we could not be irising you could not be irising they could not be irising
Perfect	V-ing perfect
I could not have irised you could not have irised she could not have irised we could not have irised you could not have irised they could not have irised	I could not have been irising you could not have been irising she could not have been irising we could not have been irising you could not have been irising they could not have been irising

Interrogative form

Simple form	V-ing form
could I iris? could you iris? could she iris? could we iris? could you iris? could they iris?	could I be irising? could you be irising? could she be irising? could we be irising? could you be irising? could they be irising?
Perfect	V-ing perfect
could I have irised? could you have irised? could she have irised? could we have irised? could you have irised? could they have irised?	could I have been irising? could you have been irising? could she have been irising? could we have been irising? could you have been irising? could they have been irising?

Interro-negative form

Simple form	V-ing form
could I not iris? could you not iris? could she not iris? could we not iris? could you not iris? could they not iris?	could I not be irising? could you not be irising? could she not be irising? could we not be irising? could you not be irising? could they not be irising?
Perfect	V-ing perfect
could I not have irised? could you not have irised? could she not have irised? could we not have irised? could you not have irised? could they not have irised?	could I not have been irising? could you not have been irising? could she not have been irising? could we not have been irising? could you not have been irising? could they not have been irising?