could cushion
Regular verb: cushion - cushioned- cushioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cushion
you could cushion
he could cushion
we could cushion
you could cushion
they could cushion 	I could be cushioning
you could be cushioning
he could be cushioning
we could be cushioning
you could be cushioning
they could be cushioning	I could have cushioned
you could have cushioned
he could have cushioned
we could have cushioned
you could have cushioned
they could have cushioned	I could have been cushioning
you could have been cushioning
he could have been cushioning
we could have been cushioning
you could have been cushioning
they could have been cushioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not cushion
you could not cushion
he could not cushion
we could not cushion
you could not cushion
they could not cushion 	I could not be cushioning
you could not be cushioning
he could not be cushioning
we could not be cushioning
you could not be cushioning
they could not be cushioning	I could not have cushioned
you could not have cushioned
he could not have cushioned
we could not have cushioned
you could not have cushioned
they could not have cushioned	I could not have been cushioning
you could not have been cushioning
he could not have been cushioning
we could not have been cushioning
you could not have been cushioning
they could not have been cushioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cushion?
could you cushion?
could he cushion?
could we cushion?
could you cushion?
could they cushion? 	could I be cushioning?
could you be cushioning?
could he be cushioning?
could we be cushioning?
could you be cushioning?
could they be cushioning? 	could I have cushioned?
could you have cushioned?
could he have cushioned?
could we have cushioned?
could you have cushioned?
could they have cushioned? 	could I have been cushioning?
could you have been cushioning?
could he have been cushioning?
could we have been cushioning?
could you have been cushioning?
could they have been cushioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not cushion?
could you not cushion?
could he not cushion?
could we not cushion?
could you not cushion?
could they not cushion? 	could I not be cushioning?
could you not be cushioning?
could he not be cushioning?
could we not be cushioning?
could you not be cushioning?
could they not be cushioning? 	could I not have cushioned?
could you not have cushioned?
could he not have cushioned?
could we not have cushioned?
could you not have cushioned?
could they not have cushioned? 	could I not have been cushioning?
could you not have been cushioning?
could he not have been cushioning?
could we not have been cushioning?
could you not have been cushioning?
could they not have been cushioning?