I can complement you can complement she can complement we can complement you can complement they can complement
V-ing form
I can be complementing you can be complementing she can be complementing we can be complementing you can be complementing they can be complementing
Perfect
I can have complemented you can have complemented she can have complemented we can have complemented you can have complemented they can have complemented
V-ing perfect
I can have been complementing you can have been complementing she can have been complementing we can have been complementing you can have been complementing they can have been complementing
Negation
Simple form
I can't complement you can't complement she can't complement we can't complement you can't complement they can't complement
V-ing form
I can't be complementing you can't be complementing she can't be complementing we can't be complementing you can't be complementing they can't be complementing
Perfect
I can't have complemented you can't have complemented she can't have complemented we can't have complemented you can't have complemented they can't have complemented
V-ing perfect
I can't have been complementing you can't have been complementing she can't have been complementing we can't have been complementing you can't have been complementing they can't have been complementing
Interrogative form
Simple form
can I complement? can you complement? can she complement? can we complement? can you complement? can they complement?
V-ing form
can I be complementing? can you be complementing? can she be complementing? can we be complementing? can you be complementing? can they be complementing?
Perfect
can I have complemented? can you have complemented? can she have complemented? can we have complemented? can you have complemented? can they have complemented?
V-ing perfect
can I have been complementing? can you have been complementing? can she have been complementing? can we have been complementing? can you have been complementing? can they have been complementing?
Interro-negative form
Simple form
can't I complement? can't you complement? can't she complement? can't we complement? can't you complement? can't they complement?
V-ing form
can't I be complementing? can't you be complementing? can't she be complementing? can't we be complementing? can't you be complementing? can't they be complementing?
Perfect
can't I have complemented? can't you have complemented? can't she have complemented? can't we have complemented? can't you have complemented? can't they have complemented?
V-ing perfect
can't I have been complementing? can't you have been complementing? can't she have been complementing? can't we have been complementing? can't you have been complementing? can't they have been complementing?