could offer
Regular verb: offer - offered- offered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could offer
you could offer
he could offer
we could offer
you could offer
they could offer 	I could be offering
you could be offering
he could be offering
we could be offering
you could be offering
they could be offering	I could have offered
you could have offered
he could have offered
we could have offered
you could have offered
they could have offered	I could have been offering
you could have been offering
he could have been offering
we could have been offering
you could have been offering
they could have been offering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not offer
you could not offer
he could not offer
we could not offer
you could not offer
they could not offer 	I could not be offering
you could not be offering
he could not be offering
we could not be offering
you could not be offering
they could not be offering	I could not have offered
you could not have offered
he could not have offered
we could not have offered
you could not have offered
they could not have offered	I could not have been offering
you could not have been offering
he could not have been offering
we could not have been offering
you could not have been offering
they could not have been offering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I offer?
could you offer?
could he offer?
could we offer?
could you offer?
could they offer? 	could I be offering?
could you be offering?
could he be offering?
could we be offering?
could you be offering?
could they be offering? 	could I have offered?
could you have offered?
could he have offered?
could we have offered?
could you have offered?
could they have offered? 	could I have been offering?
could you have been offering?
could he have been offering?
could we have been offering?
could you have been offering?
could they have been offering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not offer?
could you not offer?
could he not offer?
could we not offer?
could you not offer?
could they not offer? 	could I not be offering?
could you not be offering?
could he not be offering?
could we not be offering?
could you not be offering?
could they not be offering? 	could I not have offered?
could you not have offered?
could he not have offered?
could we not have offered?
could you not have offered?
could they not have offered? 	could I not have been offering?
could you not have been offering?
could he not have been offering?
could we not have been offering?
could you not have been offering?
could they not have been offering?