could ladder
Regular verb: ladder - laddered- laddered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could ladder
you could ladder
he could ladder
we could ladder
you could ladder
they could ladder 	I could be laddering
you could be laddering
he could be laddering
we could be laddering
you could be laddering
they could be laddering	I could have laddered
you could have laddered
he could have laddered
we could have laddered
you could have laddered
they could have laddered	I could have been laddering
you could have been laddering
he could have been laddering
we could have been laddering
you could have been laddering
they could have been laddering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't ladder
you couldn't ladder
he couldn't ladder
we couldn't ladder
you couldn't ladder
they couldn't ladder 	I couldn't be laddering
you couldn't be laddering
he couldn't be laddering
we couldn't be laddering
you couldn't be laddering
they couldn't be laddering	I couldn't have laddered
you couldn't have laddered
he couldn't have laddered
we couldn't have laddered
you couldn't have laddered
they couldn't have laddered	I couldn't have been laddering
you couldn't have been laddering
he couldn't have been laddering
we couldn't have been laddering
you couldn't have been laddering
they couldn't have been laddering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I ladder?
could you ladder?
could he ladder?
could we ladder?
could you ladder?
could they ladder? 	could I be laddering?
could you be laddering?
could he be laddering?
could we be laddering?
could you be laddering?
could they be laddering? 	could I have laddered?
could you have laddered?
could he have laddered?
could we have laddered?
could you have laddered?
could they have laddered? 	could I have been laddering?
could you have been laddering?
could he have been laddering?
could we have been laddering?
could you have been laddering?
could they have been laddering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I ladder?
couldn't you ladder?
couldn't he ladder?
couldn't we ladder?
couldn't you ladder?
couldn't they ladder? 	couldn't I be laddering?
couldn't you be laddering?
couldn't he be laddering?
couldn't we be laddering?
couldn't you be laddering?
couldn't they be laddering? 	couldn't I have laddered?
couldn't you have laddered?
couldn't he have laddered?
couldn't we have laddered?
couldn't you have laddered?
couldn't they have laddered? 	couldn't I have been laddering?
couldn't you have been laddering?
couldn't he have been laddering?
couldn't we have been laddering?
couldn't you have been laddering?
couldn't they have been laddering?