could rescue
Regular verb: rescue - rescued- rescued

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could rescue
you could rescue
she could rescue
we could rescue
you could rescue
they could rescue 	I could be rescuing
you could be rescuing
she could be rescuing
we could be rescuing
you could be rescuing
they could be rescuing	I could have rescued
you could have rescued
she could have rescued
we could have rescued
you could have rescued
they could have rescued	I could have been rescuing
you could have been rescuing
she could have been rescuing
we could have been rescuing
you could have been rescuing
they could have been rescuing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't rescue
you couldn't rescue
she couldn't rescue
we couldn't rescue
you couldn't rescue
they couldn't rescue 	I couldn't be rescuing
you couldn't be rescuing
she couldn't be rescuing
we couldn't be rescuing
you couldn't be rescuing
they couldn't be rescuing	I couldn't have rescued
you couldn't have rescued
she couldn't have rescued
we couldn't have rescued
you couldn't have rescued
they couldn't have rescued	I couldn't have been rescuing
you couldn't have been rescuing
she couldn't have been rescuing
we couldn't have been rescuing
you couldn't have been rescuing
they couldn't have been rescuing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I rescue?
could you rescue?
could she rescue?
could we rescue?
could you rescue?
could they rescue? 	could I be rescuing?
could you be rescuing?
could she be rescuing?
could we be rescuing?
could you be rescuing?
could they be rescuing? 	could I have rescued?
could you have rescued?
could she have rescued?
could we have rescued?
could you have rescued?
could they have rescued? 	could I have been rescuing?
could you have been rescuing?
could she have been rescuing?
could we have been rescuing?
could you have been rescuing?
could they have been rescuing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I rescue?
couldn't you rescue?
couldn't she rescue?
couldn't we rescue?
couldn't you rescue?
couldn't they rescue? 	couldn't I be rescuing?
couldn't you be rescuing?
couldn't she be rescuing?
couldn't we be rescuing?
couldn't you be rescuing?
couldn't they be rescuing? 	couldn't I have rescued?
couldn't you have rescued?
couldn't she have rescued?
couldn't we have rescued?
couldn't you have rescued?
couldn't they have rescued? 	couldn't I have been rescuing?
couldn't you have been rescuing?
couldn't she have been rescuing?
couldn't we have been rescuing?
couldn't you have been rescuing?
couldn't they have been rescuing?