can elapse
Regular verb: elapse - elapsed- elapsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can elapse
you can elapse
she can elapse
we can elapse
you can elapse
they can elapse 	I can be elapsing
you can be elapsing
she can be elapsing
we can be elapsing
you can be elapsing
they can be elapsing	I can have elapsed
you can have elapsed
she can have elapsed
we can have elapsed
you can have elapsed
they can have elapsed	I can have been elapsing
you can have been elapsing
she can have been elapsing
we can have been elapsing
you can have been elapsing
they can have been elapsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't elapse
you can't elapse
she can't elapse
we can't elapse
you can't elapse
they can't elapse 	I can't be elapsing
you can't be elapsing
she can't be elapsing
we can't be elapsing
you can't be elapsing
they can't be elapsing	I can't have elapsed
you can't have elapsed
she can't have elapsed
we can't have elapsed
you can't have elapsed
they can't have elapsed	I can't have been elapsing
you can't have been elapsing
she can't have been elapsing
we can't have been elapsing
you can't have been elapsing
they can't have been elapsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I elapse?
can you elapse?
can she elapse?
can we elapse?
can you elapse?
can they elapse? 	can I be elapsing?
can you be elapsing?
can she be elapsing?
can we be elapsing?
can you be elapsing?
can they be elapsing? 	can I have elapsed?
can you have elapsed?
can she have elapsed?
can we have elapsed?
can you have elapsed?
can they have elapsed? 	can I have been elapsing?
can you have been elapsing?
can she have been elapsing?
can we have been elapsing?
can you have been elapsing?
can they have been elapsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I elapse?
can't you elapse?
can't she elapse?
can't we elapse?
can't you elapse?
can't they elapse? 	can't I be elapsing?
can't you be elapsing?
can't she be elapsing?
can't we be elapsing?
can't you be elapsing?
can't they be elapsing? 	can't I have elapsed?
can't you have elapsed?
can't she have elapsed?
can't we have elapsed?
can't you have elapsed?
can't they have elapsed? 	can't I have been elapsing?
can't you have been elapsing?
can't she have been elapsing?
can't we have been elapsing?
can't you have been elapsing?
can't they have been elapsing?