can barter
Regular verb: barter - bartered- bartered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can barter
you can barter
he can barter
we can barter
you can barter
they can barter 	I can be bartering
you can be bartering
he can be bartering
we can be bartering
you can be bartering
they can be bartering	I can have bartered
you can have bartered
he can have bartered
we can have bartered
you can have bartered
they can have bartered	I can have been bartering
you can have been bartering
he can have been bartering
we can have been bartering
you can have been bartering
they can have been bartering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't barter
you can't barter
he can't barter
we can't barter
you can't barter
they can't barter 	I can't be bartering
you can't be bartering
he can't be bartering
we can't be bartering
you can't be bartering
they can't be bartering	I can't have bartered
you can't have bartered
he can't have bartered
we can't have bartered
you can't have bartered
they can't have bartered	I can't have been bartering
you can't have been bartering
he can't have been bartering
we can't have been bartering
you can't have been bartering
they can't have been bartering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I barter?
can you barter?
can he barter?
can we barter?
can you barter?
can they barter? 	can I be bartering?
can you be bartering?
can he be bartering?
can we be bartering?
can you be bartering?
can they be bartering? 	can I have bartered?
can you have bartered?
can he have bartered?
can we have bartered?
can you have bartered?
can they have bartered? 	can I have been bartering?
can you have been bartering?
can he have been bartering?
can we have been bartering?
can you have been bartering?
can they have been bartering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I barter?
can't you barter?
can't he barter?
can't we barter?
can't you barter?
can't they barter? 	can't I be bartering?
can't you be bartering?
can't he be bartering?
can't we be bartering?
can't you be bartering?
can't they be bartering? 	can't I have bartered?
can't you have bartered?
can't he have bartered?
can't we have bartered?
can't you have bartered?
can't they have bartered? 	can't I have been bartering?
can't you have been bartering?
can't he have been bartering?
can't we have been bartering?
can't you have been bartering?
can't they have been bartering?