I can conjugate you can conjugate she can conjugate we can conjugate you can conjugate they can conjugate
V-ing form
I can be conjugating you can be conjugating she can be conjugating we can be conjugating you can be conjugating they can be conjugating
Perfect
I can have conjugated you can have conjugated she 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 she 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 she 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 she 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 she 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 she 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 she conjugate? can we conjugate? can you conjugate? can they conjugate?
V-ing form
can I be conjugating? can you be conjugating? can she be conjugating? can we be conjugating? can you be conjugating? can they be conjugating?
Perfect
can I have conjugated? can you have conjugated? can she 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 she 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 she 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 she 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 she 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 she have been conjugating? can't we have been conjugating? can't you have been conjugating? can't they have been conjugating?