could outlast
Regular verb: outlast - outlasted- outlasted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could outlast
you could outlast
she could outlast
we could outlast
you could outlast
they could outlast 	I could be outlasting
you could be outlasting
she could be outlasting
we could be outlasting
you could be outlasting
they could be outlasting	I could have outlasted
you could have outlasted
she could have outlasted
we could have outlasted
you could have outlasted
they could have outlasted	I could have been outlasting
you could have been outlasting
she could have been outlasting
we could have been outlasting
you could have been outlasting
they could have been outlasting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't outlast
you couldn't outlast
she couldn't outlast
we couldn't outlast
you couldn't outlast
they couldn't outlast 	I couldn't be outlasting
you couldn't be outlasting
she couldn't be outlasting
we couldn't be outlasting
you couldn't be outlasting
they couldn't be outlasting	I couldn't have outlasted
you couldn't have outlasted
she couldn't have outlasted
we couldn't have outlasted
you couldn't have outlasted
they couldn't have outlasted	I couldn't have been outlasting
you couldn't have been outlasting
she couldn't have been outlasting
we couldn't have been outlasting
you couldn't have been outlasting
they couldn't have been outlasting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I outlast?
could you outlast?
could she outlast?
could we outlast?
could you outlast?
could they outlast? 	could I be outlasting?
could you be outlasting?
could she be outlasting?
could we be outlasting?
could you be outlasting?
could they be outlasting? 	could I have outlasted?
could you have outlasted?
could she have outlasted?
could we have outlasted?
could you have outlasted?
could they have outlasted? 	could I have been outlasting?
could you have been outlasting?
could she have been outlasting?
could we have been outlasting?
could you have been outlasting?
could they have been outlasting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I outlast?
couldn't you outlast?
couldn't she outlast?
couldn't we outlast?
couldn't you outlast?
couldn't they outlast? 	couldn't I be outlasting?
couldn't you be outlasting?
couldn't she be outlasting?
couldn't we be outlasting?
couldn't you be outlasting?
couldn't they be outlasting? 	couldn't I have outlasted?
couldn't you have outlasted?
couldn't she have outlasted?
couldn't we have outlasted?
couldn't you have outlasted?
couldn't they have outlasted? 	couldn't I have been outlasting?
couldn't you have been outlasting?
couldn't she have been outlasting?
couldn't we have been outlasting?
couldn't you have been outlasting?
couldn't they have been outlasting?