could overwater
Regular verb: overwater - overwatered- overwatered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could overwater
you could overwater
he could overwater
we could overwater
you could overwater
they could overwater 	I could be overwatering
you could be overwatering
he could be overwatering
we could be overwatering
you could be overwatering
they could be overwatering	I could have overwatered
you could have overwatered
he could have overwatered
we could have overwatered
you could have overwatered
they could have overwatered	I could have been overwatering
you could have been overwatering
he could have been overwatering
we could have been overwatering
you could have been overwatering
they could have been overwatering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not overwater
you could not overwater
he could not overwater
we could not overwater
you could not overwater
they could not overwater 	I could not be overwatering
you could not be overwatering
he could not be overwatering
we could not be overwatering
you could not be overwatering
they could not be overwatering	I could not have overwatered
you could not have overwatered
he could not have overwatered
we could not have overwatered
you could not have overwatered
they could not have overwatered	I could not have been overwatering
you could not have been overwatering
he could not have been overwatering
we could not have been overwatering
you could not have been overwatering
they could not have been overwatering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I overwater?
could you overwater?
could he overwater?
could we overwater?
could you overwater?
could they overwater? 	could I be overwatering?
could you be overwatering?
could he be overwatering?
could we be overwatering?
could you be overwatering?
could they be overwatering? 	could I have overwatered?
could you have overwatered?
could he have overwatered?
could we have overwatered?
could you have overwatered?
could they have overwatered? 	could I have been overwatering?
could you have been overwatering?
could he have been overwatering?
could we have been overwatering?
could you have been overwatering?
could they have been overwatering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not overwater?
could you not overwater?
could he not overwater?
could we not overwater?
could you not overwater?
could they not overwater? 	could I not be overwatering?
could you not be overwatering?
could he not be overwatering?
could we not be overwatering?
could you not be overwatering?
could they not be overwatering? 	could I not have overwatered?
could you not have overwatered?
could he not have overwatered?
could we not have overwatered?
could you not have overwatered?
could they not have overwatered? 	could I not have been overwatering?
could you not have been overwatering?
could he not have been overwatering?
could we not have been overwatering?
could you not have been overwatering?
could they not have been overwatering?