could lap
Regular verb: lap - lapped- lapped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lap
you could lap
she could lap
we could lap
you could lap
they could lap 	I could be lapping
you could be lapping
she could be lapping
we could be lapping
you could be lapping
they could be lapping	I could have lapped
you could have lapped
she could have lapped
we could have lapped
you could have lapped
they could have lapped	I could have been lapping
you could have been lapping
she could have been lapping
we could have been lapping
you could have been lapping
they could have been lapping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lap
you couldn't lap
she couldn't lap
we couldn't lap
you couldn't lap
they couldn't lap 	I couldn't be lapping
you couldn't be lapping
she couldn't be lapping
we couldn't be lapping
you couldn't be lapping
they couldn't be lapping	I couldn't have lapped
you couldn't have lapped
she couldn't have lapped
we couldn't have lapped
you couldn't have lapped
they couldn't have lapped	I couldn't have been lapping
you couldn't have been lapping
she couldn't have been lapping
we couldn't have been lapping
you couldn't have been lapping
they couldn't have been lapping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lap?
could you lap?
could she lap?
could we lap?
could you lap?
could they lap? 	could I be lapping?
could you be lapping?
could she be lapping?
could we be lapping?
could you be lapping?
could they be lapping? 	could I have lapped?
could you have lapped?
could she have lapped?
could we have lapped?
could you have lapped?
could they have lapped? 	could I have been lapping?
could you have been lapping?
could she have been lapping?
could we have been lapping?
could you have been lapping?
could they have been lapping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lap?
couldn't you lap?
couldn't she lap?
couldn't we lap?
couldn't you lap?
couldn't they lap? 	couldn't I be lapping?
couldn't you be lapping?
couldn't she be lapping?
couldn't we be lapping?
couldn't you be lapping?
couldn't they be lapping? 	couldn't I have lapped?
couldn't you have lapped?
couldn't she have lapped?
couldn't we have lapped?
couldn't you have lapped?
couldn't they have lapped? 	couldn't I have been lapping?
couldn't you have been lapping?
couldn't she have been lapping?
couldn't we have been lapping?
couldn't you have been lapping?
couldn't they have been lapping?