can abseil
Regular verb: abseil - abseiled- abseiled

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot abseil
you cannot abseil
she cannot abseil
we cannot abseil
you cannot abseil
they cannot abseil 	I cannot be abseiling
you cannot be abseiling
she cannot be abseiling
we cannot be abseiling
you cannot be abseiling
they cannot be abseiling	I cannot have abseiled
you cannot have abseiled
she cannot have abseiled
we cannot have abseiled
you cannot have abseiled
they cannot have abseiled	I cannot have been abseiling
you cannot have been abseiling
she cannot have been abseiling
we cannot have been abseiling
you cannot have been abseiling
they cannot have been abseiling	

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

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