I can iron you can iron he can iron we can iron you can iron they can iron
V-ing form
I can be ironing you can be ironing he can be ironing we can be ironing you can be ironing they can be ironing
Perfect
I can have ironed you can have ironed he can have ironed we can have ironed you can have ironed they can have ironed
V-ing perfect
I can have been ironing you can have been ironing he can have been ironing we can have been ironing you can have been ironing they can have been ironing
Negation
Simple form
I can't iron you can't iron he can't iron we can't iron you can't iron they can't iron
V-ing form
I can't be ironing you can't be ironing he can't be ironing we can't be ironing you can't be ironing they can't be ironing
Perfect
I can't have ironed you can't have ironed he can't have ironed we can't have ironed you can't have ironed they can't have ironed
V-ing perfect
I can't have been ironing you can't have been ironing he can't have been ironing we can't have been ironing you can't have been ironing they can't have been ironing
Interrogative form
Simple form
can I iron? can you iron? can he iron? can we iron? can you iron? can they iron?
V-ing form
can I be ironing? can you be ironing? can he be ironing? can we be ironing? can you be ironing? can they be ironing?
Perfect
can I have ironed? can you have ironed? can he have ironed? can we have ironed? can you have ironed? can they have ironed?
V-ing perfect
can I have been ironing? can you have been ironing? can he have been ironing? can we have been ironing? can you have been ironing? can they have been ironing?
Interro-negative form
Simple form
can't I iron? can't you iron? can't he iron? can't we iron? can't you iron? can't they iron?
V-ing form
can't I be ironing? can't you be ironing? can't he be ironing? can't we be ironing? can't you be ironing? can't they be ironing?
Perfect
can't I have ironed? can't you have ironed? can't he have ironed? can't we have ironed? can't you have ironed? can't they have ironed?
V-ing perfect
can't I have been ironing? can't you have been ironing? can't he have been ironing? can't we have been ironing? can't you have been ironing? can't they have been ironing?