could escape
Regular verb: escape - escaped- escaped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could escape
you could escape
she could escape
we could escape
you could escape
they could escape 	I could be escaping
you could be escaping
she could be escaping
we could be escaping
you could be escaping
they could be escaping	I could have escaped
you could have escaped
she 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
she 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 couldn't escape
you couldn't escape
she couldn't escape
we couldn't escape
you couldn't escape
they couldn't escape 	I couldn't be escaping
you couldn't be escaping
she couldn't be escaping
we couldn't be escaping
you couldn't be escaping
they couldn't be escaping	I couldn't have escaped
you couldn't have escaped
she couldn't have escaped
we couldn't have escaped
you couldn't have escaped
they couldn't have escaped	I couldn't have been escaping
you couldn't have been escaping
she couldn't have been escaping
we couldn't have been escaping
you couldn't have been escaping
they couldn't have been escaping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I escape?
could you escape?
could she escape?
could we escape?
could you escape?
could they escape? 	could I be escaping?
could you be escaping?
could she be escaping?
could we be escaping?
could you be escaping?
could they be escaping? 	could I have escaped?
could you have escaped?
could she 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 she 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 	
couldn't I escape?
couldn't you escape?
couldn't she escape?
couldn't we escape?
couldn't you escape?
couldn't they escape? 	couldn't I be escaping?
couldn't you be escaping?
couldn't she be escaping?
couldn't we be escaping?
couldn't you be escaping?
couldn't they be escaping? 	couldn't I have escaped?
couldn't you have escaped?
couldn't she have escaped?
couldn't we have escaped?
couldn't you have escaped?
couldn't they have escaped? 	couldn't I have been escaping?
couldn't you have been escaping?
couldn't she have been escaping?
couldn't we have been escaping?
couldn't you have been escaping?
couldn't they have been escaping?