English verb conjugation
CAN MAR

Regular verb: mar - marred - marred

Affirmation

Simple form	V-ing form
I can mar you can mar he can mar we can mar you can mar they can mar	I can be marring you can be marring he can be marring we can be marring you can be marring they can be marring
Perfect	V-ing perfect
I can have marred you can have marred he can have marred we can have marred you can have marred they can have marred	I can have been marring you can have been marring he can have been marring we can have been marring you can have been marring they can have been marring

Negation

Simple form	V-ing form
I can't mar you can't mar he can't mar we can't mar you can't mar they can't mar	I can't be marring you can't be marring he can't be marring we can't be marring you can't be marring they can't be marring
Perfect	V-ing perfect
I can't have marred you can't have marred he can't have marred we can't have marred you can't have marred they can't have marred	I can't have been marring you can't have been marring he can't have been marring we can't have been marring you can't have been marring they can't have been marring

Interrogative form

Simple form	V-ing form
can I mar? can you mar? can he mar? can we mar? can you mar? can they mar?	can I be marring? can you be marring? can he be marring? can we be marring? can you be marring? can they be marring?
Perfect	V-ing perfect
can I have marred? can you have marred? can he have marred? can we have marred? can you have marred? can they have marred?	can I have been marring? can you have been marring? can he have been marring? can we have been marring? can you have been marring? can they have been marring?

Interro-negative form

Simple form	V-ing form
can't I mar? can't you mar? can't he mar? can't we mar? can't you mar? can't they mar?	can't I be marring? can't you be marring? can't he be marring? can't we be marring? can't you be marring? can't they be marring?
Perfect	V-ing perfect
can't I have marred? can't you have marred? can't he have marred? can't we have marred? can't you have marred? can't they have marred?	can't I have been marring? can't you have been marring? can't he have been marring? can't we have been marring? can't you have been marring? can't they have been marring?