I can antique you can antique he can antique we can antique you can antique they can antique
V-ing form
I can be antiquing you can be antiquing he can be antiquing we can be antiquing you can be antiquing they can be antiquing
Perfect
I can have antiqued you can have antiqued he can have antiqued we can have antiqued you can have antiqued they can have antiqued
V-ing perfect
I can have been antiquing you can have been antiquing he can have been antiquing we can have been antiquing you can have been antiquing they can have been antiquing
Negation
Simple form
I cannot antique you cannot antique he cannot antique we cannot antique you cannot antique they cannot antique
V-ing form
I cannot be antiquing you cannot be antiquing he cannot be antiquing we cannot be antiquing you cannot be antiquing they cannot be antiquing
Perfect
I cannot have antiqued you cannot have antiqued he cannot have antiqued we cannot have antiqued you cannot have antiqued they cannot have antiqued
V-ing perfect
I cannot have been antiquing you cannot have been antiquing he cannot have been antiquing we cannot have been antiquing you cannot have been antiquing they cannot have been antiquing
Interrogative form
Simple form
can I antique? can you antique? can he antique? can we antique? can you antique? can they antique?
V-ing form
can I be antiquing? can you be antiquing? can he be antiquing? can we be antiquing? can you be antiquing? can they be antiquing?
Perfect
can I have antiqued? can you have antiqued? can he have antiqued? can we have antiqued? can you have antiqued? can they have antiqued?
V-ing perfect
can I have been antiquing? can you have been antiquing? can he have been antiquing? can we have been antiquing? can you have been antiquing? can they have been antiquing?
Interro-negative form
Simple form
can I not antique? can you not antique? can he not antique? can we not antique? can you not antique? can they not antique?
V-ing form
can I not be antiquing? can you not be antiquing? can he not be antiquing? can we not be antiquing? can you not be antiquing? can they not be antiquing?
Perfect
can I not have antiqued? can you not have antiqued? can he not have antiqued? can we not have antiqued? can you not have antiqued? can they not have antiqued?
V-ing perfect
can I not have been antiquing? can you not have been antiquing? can he not have been antiquing? can we not have been antiquing? can you not have been antiquing? can they not have been antiquing?