can keep
Irregular verb: keep - kept- kept

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can keep
you can keep
she can keep
we can keep
you can keep
they can keep 	I can be keeping
you can be keeping
she can be keeping
we can be keeping
you can be keeping
they can be keeping	I can have kept
you can have kept
she can have kept
we can have kept
you can have kept
they can have kept	I can have been keeping
you can have been keeping
she can have been keeping
we can have been keeping
you can have been keeping
they can have been keeping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't keep
you can't keep
she can't keep
we can't keep
you can't keep
they can't keep 	I can't be keeping
you can't be keeping
she can't be keeping
we can't be keeping
you can't be keeping
they can't be keeping	I can't have kept
you can't have kept
she can't have kept
we can't have kept
you can't have kept
they can't have kept	I can't have been keeping
you can't have been keeping
she can't have been keeping
we can't have been keeping
you can't have been keeping
they can't have been keeping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I keep?
can you keep?
can she keep?
can we keep?
can you keep?
can they keep? 	can I be keeping?
can you be keeping?
can she be keeping?
can we be keeping?
can you be keeping?
can they be keeping? 	can I have kept?
can you have kept?
can she have kept?
can we have kept?
can you have kept?
can they have kept? 	can I have been keeping?
can you have been keeping?
can she have been keeping?
can we have been keeping?
can you have been keeping?
can they have been keeping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I keep?
can't you keep?
can't she keep?
can't we keep?
can't you keep?
can't they keep? 	can't I be keeping?
can't you be keeping?
can't she be keeping?
can't we be keeping?
can't you be keeping?
can't they be keeping? 	can't I have kept?
can't you have kept?
can't she have kept?
can't we have kept?
can't you have kept?
can't they have kept? 	can't I have been keeping?
can't you have been keeping?
can't she have been keeping?
can't we have been keeping?
can't you have been keeping?
can't they have been keeping?