could oversleep
Irregular verb: oversleep - overslept- overslept

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could oversleep
you could oversleep
she could oversleep
we could oversleep
you could oversleep
they could oversleep 	I could be oversleeping
you could be oversleeping
she could be oversleeping
we could be oversleeping
you could be oversleeping
they could be oversleeping	I could have overslept
you could have overslept
she could have overslept
we could have overslept
you could have overslept
they could have overslept	I could have been oversleeping
you could have been oversleeping
she could have been oversleeping
we could have been oversleeping
you could have been oversleeping
they could have been oversleeping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't oversleep
you couldn't oversleep
she couldn't oversleep
we couldn't oversleep
you couldn't oversleep
they couldn't oversleep 	I couldn't be oversleeping
you couldn't be oversleeping
she couldn't be oversleeping
we couldn't be oversleeping
you couldn't be oversleeping
they couldn't be oversleeping	I couldn't have overslept
you couldn't have overslept
she couldn't have overslept
we couldn't have overslept
you couldn't have overslept
they couldn't have overslept	I couldn't have been oversleeping
you couldn't have been oversleeping
she couldn't have been oversleeping
we couldn't have been oversleeping
you couldn't have been oversleeping
they couldn't have been oversleeping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I oversleep?
could you oversleep?
could she oversleep?
could we oversleep?
could you oversleep?
could they oversleep? 	could I be oversleeping?
could you be oversleeping?
could she be oversleeping?
could we be oversleeping?
could you be oversleeping?
could they be oversleeping? 	could I have overslept?
could you have overslept?
could she have overslept?
could we have overslept?
could you have overslept?
could they have overslept? 	could I have been oversleeping?
could you have been oversleeping?
could she have been oversleeping?
could we have been oversleeping?
could you have been oversleeping?
could they have been oversleeping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I oversleep?
couldn't you oversleep?
couldn't she oversleep?
couldn't we oversleep?
couldn't you oversleep?
couldn't they oversleep? 	couldn't I be oversleeping?
couldn't you be oversleeping?
couldn't she be oversleeping?
couldn't we be oversleeping?
couldn't you be oversleeping?
couldn't they be oversleeping? 	couldn't I have overslept?
couldn't you have overslept?
couldn't she have overslept?
couldn't we have overslept?
couldn't you have overslept?
couldn't they have overslept? 	couldn't I have been oversleeping?
couldn't you have been oversleeping?
couldn't she have been oversleeping?
couldn't we have been oversleeping?
couldn't you have been oversleeping?
couldn't they have been oversleeping?