I can conjugate you can conjugate he can conjugate we can conjugate you can conjugate they can conjugate
V-ing form
I can be conjugating you can be conjugating he can be conjugating we can be conjugating you can be conjugating they can be conjugating
Perfect
I can have conjugated you can have conjugated he can have conjugated we can have conjugated you can have conjugated they can have conjugated
V-ing perfect
I can have been conjugating you can have been conjugating he can have been conjugating we can have been conjugating you can have been conjugating they can have been conjugating
Negation
Simple form
I can't conjugate you can't conjugate he can't conjugate we can't conjugate you can't conjugate they can't conjugate
V-ing form
I can't be conjugating you can't be conjugating he can't be conjugating we can't be conjugating you can't be conjugating they can't be conjugating
Perfect
I can't have conjugated you can't have conjugated he can't have conjugated we can't have conjugated you can't have conjugated they can't have conjugated
V-ing perfect
I can't have been conjugating you can't have been conjugating he can't have been conjugating we can't have been conjugating you can't have been conjugating they can't have been conjugating
Interrogative form
Simple form
can I conjugate? can you conjugate? can he conjugate? can we conjugate? can you conjugate? can they conjugate?
V-ing form
can I be conjugating? can you be conjugating? can he be conjugating? can we be conjugating? can you be conjugating? can they be conjugating?
Perfect
can I have conjugated? can you have conjugated? can he have conjugated? can we have conjugated? can you have conjugated? can they have conjugated?
V-ing perfect
can I have been conjugating? can you have been conjugating? can he have been conjugating? can we have been conjugating? can you have been conjugating? can they have been conjugating?
Interro-negative form
Simple form
can't I conjugate? can't you conjugate? can't he conjugate? can't we conjugate? can't you conjugate? can't they conjugate?
V-ing form
can't I be conjugating? can't you be conjugating? can't he be conjugating? can't we be conjugating? can't you be conjugating? can't they be conjugating?
Perfect
can't I have conjugated? can't you have conjugated? can't he have conjugated? can't we have conjugated? can't you have conjugated? can't they have conjugated?
V-ing perfect
can't I have been conjugating? can't you have been conjugating? can't he have been conjugating? can't we have been conjugating? can't you have been conjugating? can't they have been conjugating?