English verb conjugation
COULD IRIS

Regular verb: iris - irised - irised

Affirmation

Simple form	V-ing form
I could iris you could iris he could iris we could iris you could iris they could iris	I could be irising you could be irising he 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 he 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 he 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 he 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 he 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 he 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 he 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 he iris? could we iris? could you iris? could they iris?	could I be irising? could you be irising? could he 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 he 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 he 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 he 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 he 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 he 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 he not have been irising? could we not have been irising? could you not have been irising? could they not have been irising?