I can flatter you can flatter she can flatter we can flatter you can flatter they can flatter
V-ing form
I can be flattering you can be flattering she can be flattering we can be flattering you can be flattering they can be flattering
Perfect
I can have flattered you can have flattered she can have flattered we can have flattered you can have flattered they can have flattered
V-ing perfect
I can have been flattering you can have been flattering she can have been flattering we can have been flattering you can have been flattering they can have been flattering
Negation
Simple form
I cannot flatter you cannot flatter she cannot flatter we cannot flatter you cannot flatter they cannot flatter
V-ing form
I cannot be flattering you cannot be flattering she cannot be flattering we cannot be flattering you cannot be flattering they cannot be flattering
Perfect
I cannot have flattered you cannot have flattered she cannot have flattered we cannot have flattered you cannot have flattered they cannot have flattered
V-ing perfect
I cannot have been flattering you cannot have been flattering she cannot have been flattering we cannot have been flattering you cannot have been flattering they cannot have been flattering
Interrogative form
Simple form
can I flatter? can you flatter? can she flatter? can we flatter? can you flatter? can they flatter?
V-ing form
can I be flattering? can you be flattering? can she be flattering? can we be flattering? can you be flattering? can they be flattering?
Perfect
can I have flattered? can you have flattered? can she have flattered? can we have flattered? can you have flattered? can they have flattered?
V-ing perfect
can I have been flattering? can you have been flattering? can she have been flattering? can we have been flattering? can you have been flattering? can they have been flattering?
Interro-negative form
Simple form
can I not flatter? can you not flatter? can she not flatter? can we not flatter? can you not flatter? can they not flatter?
V-ing form
can I not be flattering? can you not be flattering? can she not be flattering? can we not be flattering? can you not be flattering? can they not be flattering?
Perfect
can I not have flattered? can you not have flattered? can she not have flattered? can we not have flattered? can you not have flattered? can they not have flattered?
V-ing perfect
can I not have been flattering? can you not have been flattering? can she not have been flattering? can we not have been flattering? can you not have been flattering? can they not have been flattering?