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 couldn't cushion
you couldn't cushion
he couldn't cushion
we couldn't cushion
you couldn't cushion
they couldn't cushion 	I couldn't be cushioning
you couldn't be cushioning
he couldn't be cushioning
we couldn't be cushioning
you couldn't be cushioning
they couldn't be cushioning	I couldn't have cushioned
you couldn't have cushioned
he couldn't have cushioned
we couldn't have cushioned
you couldn't have cushioned
they couldn't have cushioned	I couldn't have been cushioning
you couldn't have been cushioning
he couldn't have been cushioning
we couldn't have been cushioning
you couldn't have been cushioning
they couldn't 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 	
couldn't I cushion?
couldn't you cushion?
couldn't he cushion?
couldn't we cushion?
couldn't you cushion?
couldn't they cushion? 	couldn't I be cushioning?
couldn't you be cushioning?
couldn't he be cushioning?
couldn't we be cushioning?
couldn't you be cushioning?
couldn't they be cushioning? 	couldn't I have cushioned?
couldn't you have cushioned?
couldn't he have cushioned?
couldn't we have cushioned?
couldn't you have cushioned?
couldn't they have cushioned? 	couldn't I have been cushioning?
couldn't you have been cushioning?
couldn't he have been cushioning?
couldn't we have been cushioning?
couldn't you have been cushioning?
couldn't they have been cushioning?