may keep
Irregular verb: keep - kept- kept

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not keep
you may not keep
he may not keep
we may not keep
you may not keep
they may not keep 	I may not be keeping
you may not be keeping
he may not be keeping
we may not be keeping
you may not be keeping
they may not be keeping	I may not have kept
you may not have kept
he may not have kept
we may not have kept
you may not have kept
they may not have kept	I may not have been keeping
you may not have been keeping
he may not have been keeping
we may not have been keeping
you may not have been keeping
they may not have been keeping	

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

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not keep?
may you not keep?
may he not keep?
may we not keep?
may you not keep?
may they not keep? 	may I not be keeping?
may you not be keeping?
may he not be keeping?
may we not be keeping?
may you not be keeping?
may they not be keeping? 	may I not have kept?
may you not have kept?
may he not have kept?
may we not have kept?
may you not have kept?
may they not have kept? 	may I not have been keeping?
may you not have been keeping?
may he not have been keeping?
may we not have been keeping?
may you not have been keeping?
may they not have been keeping?