could escape
Regular verb: escape - escaped- escaped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could escape
you could escape
he could escape
we could escape
you could escape
they could escape 	I could be escaping
you could be escaping
he could be escaping
we could be escaping
you could be escaping
they could be escaping	I could have escaped
you could have escaped
he could have escaped
we could have escaped
you could have escaped
they could have escaped	I could have been escaping
you could have been escaping
he could have been escaping
we could have been escaping
you could have been escaping
they could have been escaping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not escape
you could not escape
he could not escape
we could not escape
you could not escape
they could not escape 	I could not be escaping
you could not be escaping
he could not be escaping
we could not be escaping
you could not be escaping
they could not be escaping	I could not have escaped
you could not have escaped
he could not have escaped
we could not have escaped
you could not have escaped
they could not have escaped	I could not have been escaping
you could not have been escaping
he could not have been escaping
we could not have been escaping
you could not have been escaping
they could not have been escaping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I escape?
could you escape?
could he escape?
could we escape?
could you escape?
could they escape? 	could I be escaping?
could you be escaping?
could he be escaping?
could we be escaping?
could you be escaping?
could they be escaping? 	could I have escaped?
could you have escaped?
could he have escaped?
could we have escaped?
could you have escaped?
could they have escaped? 	could I have been escaping?
could you have been escaping?
could he have been escaping?
could we have been escaping?
could you have been escaping?
could they have been escaping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not escape?
could you not escape?
could he not escape?
could we not escape?
could you not escape?
could they not escape? 	could I not be escaping?
could you not be escaping?
could he not be escaping?
could we not be escaping?
could you not be escaping?
could they not be escaping? 	could I not have escaped?
could you not have escaped?
could he not have escaped?
could we not have escaped?
could you not have escaped?
could they not have escaped? 	could I not have been escaping?
could you not have been escaping?
could he not have been escaping?
could we not have been escaping?
could you not have been escaping?
could they not have been escaping?