could bruise
Regular verb: bruise - bruised- bruised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could bruise
you could bruise
he could bruise
we could bruise
you could bruise
they could bruise 	I could be bruising
you could be bruising
he could be bruising
we could be bruising
you could be bruising
they could be bruising	I could have bruised
you could have bruised
he could have bruised
we could have bruised
you could have bruised
they could have bruised	I could have been bruising
you could have been bruising
he could have been bruising
we could have been bruising
you could have been bruising
they could have been bruising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not bruise
you could not bruise
he could not bruise
we could not bruise
you could not bruise
they could not bruise 	I could not be bruising
you could not be bruising
he could not be bruising
we could not be bruising
you could not be bruising
they could not be bruising	I could not have bruised
you could not have bruised
he could not have bruised
we could not have bruised
you could not have bruised
they could not have bruised	I could not have been bruising
you could not have been bruising
he could not have been bruising
we could not have been bruising
you could not have been bruising
they could not have been bruising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I bruise?
could you bruise?
could he bruise?
could we bruise?
could you bruise?
could they bruise? 	could I be bruising?
could you be bruising?
could he be bruising?
could we be bruising?
could you be bruising?
could they be bruising? 	could I have bruised?
could you have bruised?
could he have bruised?
could we have bruised?
could you have bruised?
could they have bruised? 	could I have been bruising?
could you have been bruising?
could he have been bruising?
could we have been bruising?
could you have been bruising?
could they have been bruising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not bruise?
could you not bruise?
could he not bruise?
could we not bruise?
could you not bruise?
could they not bruise? 	could I not be bruising?
could you not be bruising?
could he not be bruising?
could we not be bruising?
could you not be bruising?
could they not be bruising? 	could I not have bruised?
could you not have bruised?
could he not have bruised?
could we not have bruised?
could you not have bruised?
could they not have bruised? 	could I not have been bruising?
could you not have been bruising?
could he not have been bruising?
could we not have been bruising?
could you not have been bruising?
could they not have been bruising?