I can interest you can interest she can interest we can interest you can interest they can interest
V-ing form
I can be interesting you can be interesting she can be interesting we can be interesting you can be interesting they can be interesting
Perfect
I can have interested you can have interested she can have interested we can have interested you can have interested they can have interested
V-ing perfect
I can have been interesting you can have been interesting she can have been interesting we can have been interesting you can have been interesting they can have been interesting
Negation
Simple form
I cannot interest you cannot interest she cannot interest we cannot interest you cannot interest they cannot interest
V-ing form
I cannot be interesting you cannot be interesting she cannot be interesting we cannot be interesting you cannot be interesting they cannot be interesting
Perfect
I cannot have interested you cannot have interested she cannot have interested we cannot have interested you cannot have interested they cannot have interested
V-ing perfect
I cannot have been interesting you cannot have been interesting she cannot have been interesting we cannot have been interesting you cannot have been interesting they cannot have been interesting
Interrogative form
Simple form
can I interest? can you interest? can she interest? can we interest? can you interest? can they interest?
V-ing form
can I be interesting? can you be interesting? can she be interesting? can we be interesting? can you be interesting? can they be interesting?
Perfect
can I have interested? can you have interested? can she have interested? can we have interested? can you have interested? can they have interested?
V-ing perfect
can I have been interesting? can you have been interesting? can she have been interesting? can we have been interesting? can you have been interesting? can they have been interesting?
Interro-negative form
Simple form
can I not interest? can you not interest? can she not interest? can we not interest? can you not interest? can they not interest?
V-ing form
can I not be interesting? can you not be interesting? can she not be interesting? can we not be interesting? can you not be interesting? can they not be interesting?
Perfect
can I not have interested? can you not have interested? can she not have interested? can we not have interested? can you not have interested? can they not have interested?
V-ing perfect
can I not have been interesting? can you not have been interesting? can she not have been interesting? can we not have been interesting? can you not have been interesting? can they not have been interesting?