English verb conjugation
COULD IRON

Regular verb: iron - ironed - ironed

Affirmation

Simple form	V-ing form
I could iron you could iron he could iron we could iron you could iron they could iron	I could be ironing you could be ironing he could be ironing we could be ironing you could be ironing they could be ironing
Perfect	V-ing perfect
I could have ironed you could have ironed he could have ironed we could have ironed you could have ironed they could have ironed	I could have been ironing you could have been ironing he could have been ironing we could have been ironing you could have been ironing they could have been ironing

Negation

Simple form	V-ing form
I could not iron you could not iron he could not iron we could not iron you could not iron they could not iron	I could not be ironing you could not be ironing he could not be ironing we could not be ironing you could not be ironing they could not be ironing
Perfect	V-ing perfect
I could not have ironed you could not have ironed he could not have ironed we could not have ironed you could not have ironed they could not have ironed	I could not have been ironing you could not have been ironing he could not have been ironing we could not have been ironing you could not have been ironing they could not have been ironing

Interrogative form

Simple form	V-ing form
could I iron? could you iron? could he iron? could we iron? could you iron? could they iron?	could I be ironing? could you be ironing? could he be ironing? could we be ironing? could you be ironing? could they be ironing?
Perfect	V-ing perfect
could I have ironed? could you have ironed? could he have ironed? could we have ironed? could you have ironed? could they have ironed?	could I have been ironing? could you have been ironing? could he have been ironing? could we have been ironing? could you have been ironing? could they have been ironing?

Interro-negative form

Simple form	V-ing form
could I not iron? could you not iron? could he not iron? could we not iron? could you not iron? could they not iron?	could I not be ironing? could you not be ironing? could he not be ironing? could we not be ironing? could you not be ironing? could they not be ironing?
Perfect	V-ing perfect
could I not have ironed? could you not have ironed? could he not have ironed? could we not have ironed? could you not have ironed? could they not have ironed?	could I not have been ironing? could you not have been ironing? could he not have been ironing? could we not have been ironing? could you not have been ironing? could they not have been ironing?