I can enlarge you can enlarge she can enlarge we can enlarge you can enlarge they can enlarge
V-ing form
I can be enlarging you can be enlarging she can be enlarging we can be enlarging you can be enlarging they can be enlarging
Perfect
I can have enlarged you can have enlarged she can have enlarged we can have enlarged you can have enlarged they can have enlarged
V-ing perfect
I can have been enlarging you can have been enlarging she can have been enlarging we can have been enlarging you can have been enlarging they can have been enlarging
Negation
Simple form
I cannot enlarge you cannot enlarge she cannot enlarge we cannot enlarge you cannot enlarge they cannot enlarge
V-ing form
I cannot be enlarging you cannot be enlarging she cannot be enlarging we cannot be enlarging you cannot be enlarging they cannot be enlarging
Perfect
I cannot have enlarged you cannot have enlarged she cannot have enlarged we cannot have enlarged you cannot have enlarged they cannot have enlarged
V-ing perfect
I cannot have been enlarging you cannot have been enlarging she cannot have been enlarging we cannot have been enlarging you cannot have been enlarging they cannot have been enlarging
Interrogative form
Simple form
can I enlarge? can you enlarge? can she enlarge? can we enlarge? can you enlarge? can they enlarge?
V-ing form
can I be enlarging? can you be enlarging? can she be enlarging? can we be enlarging? can you be enlarging? can they be enlarging?
Perfect
can I have enlarged? can you have enlarged? can she have enlarged? can we have enlarged? can you have enlarged? can they have enlarged?
V-ing perfect
can I have been enlarging? can you have been enlarging? can she have been enlarging? can we have been enlarging? can you have been enlarging? can they have been enlarging?
Interro-negative form
Simple form
can I not enlarge? can you not enlarge? can she not enlarge? can we not enlarge? can you not enlarge? can they not enlarge?
V-ing form
can I not be enlarging? can you not be enlarging? can she not be enlarging? can we not be enlarging? can you not be enlarging? can they not be enlarging?
Perfect
can I not have enlarged? can you not have enlarged? can she not have enlarged? can we not have enlarged? can you not have enlarged? can they not have enlarged?
V-ing perfect
can I not have been enlarging? can you not have been enlarging? can she not have been enlarging? can we not have been enlarging? can you not have been enlarging? can they not have been enlarging?