can lapse
Regular verb: lapse - lapsed- lapsed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can lapse
you can lapse
he can lapse
we can lapse
you can lapse
they can lapse 	I can be lapsing
you can be lapsing
he can be lapsing
we can be lapsing
you can be lapsing
they can be lapsing	I can have lapsed
you can have lapsed
he can have lapsed
we can have lapsed
you can have lapsed
they can have lapsed	I can have been lapsing
you can have been lapsing
he can have been lapsing
we can have been lapsing
you can have been lapsing
they can have been lapsing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot lapse
you cannot lapse
he cannot lapse
we cannot lapse
you cannot lapse
they cannot lapse 	I cannot be lapsing
you cannot be lapsing
he cannot be lapsing
we cannot be lapsing
you cannot be lapsing
they cannot be lapsing	I cannot have lapsed
you cannot have lapsed
he cannot have lapsed
we cannot have lapsed
you cannot have lapsed
they cannot have lapsed	I cannot have been lapsing
you cannot have been lapsing
he cannot have been lapsing
we cannot have been lapsing
you cannot have been lapsing
they cannot have been lapsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I lapse?
can you lapse?
can he lapse?
can we lapse?
can you lapse?
can they lapse? 	can I be lapsing?
can you be lapsing?
can he be lapsing?
can we be lapsing?
can you be lapsing?
can they be lapsing? 	can I have lapsed?
can you have lapsed?
can he have lapsed?
can we have lapsed?
can you have lapsed?
can they have lapsed? 	can I have been lapsing?
can you have been lapsing?
can he have been lapsing?
can we have been lapsing?
can you have been lapsing?
can they have been lapsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not lapse?
can you not lapse?
can he not lapse?
can we not lapse?
can you not lapse?
can they not lapse? 	can I not be lapsing?
can you not be lapsing?
can he not be lapsing?
can we not be lapsing?
can you not be lapsing?
can they not be lapsing? 	can I not have lapsed?
can you not have lapsed?
can he not have lapsed?
can we not have lapsed?
can you not have lapsed?
can they not have lapsed? 	can I not have been lapsing?
can you not have been lapsing?
can he not have been lapsing?
can we not have been lapsing?
can you not have been lapsing?
can they not have been lapsing?