could overstretch
Regular verb: overstretch - overstretched- overstretched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overstretch
you could overstretch
he could overstretch
we could overstretch
you could overstretch
they could overstretch 	I could be overstretching
you could be overstretching
he could be overstretching
we could be overstretching
you could be overstretching
they could be overstretching	I could have overstretched
you could have overstretched
he could have overstretched
we could have overstretched
you could have overstretched
they could have overstretched	I could have been overstretching
you could have been overstretching
he could have been overstretching
we could have been overstretching
you could have been overstretching
they could have been overstretching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't overstretch
you couldn't overstretch
he couldn't overstretch
we couldn't overstretch
you couldn't overstretch
they couldn't overstretch 	I couldn't be overstretching
you couldn't be overstretching
he couldn't be overstretching
we couldn't be overstretching
you couldn't be overstretching
they couldn't be overstretching	I couldn't have overstretched
you couldn't have overstretched
he couldn't have overstretched
we couldn't have overstretched
you couldn't have overstretched
they couldn't have overstretched	I couldn't have been overstretching
you couldn't have been overstretching
he couldn't have been overstretching
we couldn't have been overstretching
you couldn't have been overstretching
they couldn't have been overstretching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overstretch?
could you overstretch?
could he overstretch?
could we overstretch?
could you overstretch?
could they overstretch? 	could I be overstretching?
could you be overstretching?
could he be overstretching?
could we be overstretching?
could you be overstretching?
could they be overstretching? 	could I have overstretched?
could you have overstretched?
could he have overstretched?
could we have overstretched?
could you have overstretched?
could they have overstretched? 	could I have been overstretching?
could you have been overstretching?
could he have been overstretching?
could we have been overstretching?
could you have been overstretching?
could they have been overstretching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I overstretch?
couldn't you overstretch?
couldn't he overstretch?
couldn't we overstretch?
couldn't you overstretch?
couldn't they overstretch? 	couldn't I be overstretching?
couldn't you be overstretching?
couldn't he be overstretching?
couldn't we be overstretching?
couldn't you be overstretching?
couldn't they be overstretching? 	couldn't I have overstretched?
couldn't you have overstretched?
couldn't he have overstretched?
couldn't we have overstretched?
couldn't you have overstretched?
couldn't they have overstretched? 	couldn't I have been overstretching?
couldn't you have been overstretching?
couldn't he have been overstretching?
couldn't we have been overstretching?
couldn't you have been overstretching?
couldn't they have been overstretching?