could abseil
Regular verb: abseil - abseiled- abseiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could abseil
you could abseil
he could abseil
we could abseil
you could abseil
they could abseil 	I could be abseiling
you could be abseiling
he could be abseiling
we could be abseiling
you could be abseiling
they could be abseiling	I could have abseiled
you could have abseiled
he could have abseiled
we could have abseiled
you could have abseiled
they could have abseiled	I could have been abseiling
you could have been abseiling
he could have been abseiling
we could have been abseiling
you could have been abseiling
they could have been abseiling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not abseil
you could not abseil
he could not abseil
we could not abseil
you could not abseil
they could not abseil 	I could not be abseiling
you could not be abseiling
he could not be abseiling
we could not be abseiling
you could not be abseiling
they could not be abseiling	I could not have abseiled
you could not have abseiled
he could not have abseiled
we could not have abseiled
you could not have abseiled
they could not have abseiled	I could not have been abseiling
you could not have been abseiling
he could not have been abseiling
we could not have been abseiling
you could not have been abseiling
they could not have been abseiling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I abseil?
could you abseil?
could he abseil?
could we abseil?
could you abseil?
could they abseil? 	could I be abseiling?
could you be abseiling?
could he be abseiling?
could we be abseiling?
could you be abseiling?
could they be abseiling? 	could I have abseiled?
could you have abseiled?
could he have abseiled?
could we have abseiled?
could you have abseiled?
could they have abseiled? 	could I have been abseiling?
could you have been abseiling?
could he have been abseiling?
could we have been abseiling?
could you have been abseiling?
could they have been abseiling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not abseil?
could you not abseil?
could he not abseil?
could we not abseil?
could you not abseil?
could they not abseil? 	could I not be abseiling?
could you not be abseiling?
could he not be abseiling?
could we not be abseiling?
could you not be abseiling?
could they not be abseiling? 	could I not have abseiled?
could you not have abseiled?
could he not have abseiled?
could we not have abseiled?
could you not have abseiled?
could they not have abseiled? 	could I not have been abseiling?
could you not have been abseiling?
could he not have been abseiling?
could we not have been abseiling?
could you not have been abseiling?
could they not have been abseiling?