may lower
Regular verb: lower - lowered- lowered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may lower
you may lower
she may lower
we may lower
you may lower
they may lower 	I may be lowering
you may be lowering
she may be lowering
we may be lowering
you may be lowering
they may be lowering	I may have lowered
you may have lowered
she may have lowered
we may have lowered
you may have lowered
they may have lowered	I may have been lowering
you may have been lowering
she may have been lowering
we may have been lowering
you may have been lowering
they may have been lowering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not lower
you may not lower
she may not lower
we may not lower
you may not lower
they may not lower 	I may not be lowering
you may not be lowering
she may not be lowering
we may not be lowering
you may not be lowering
they may not be lowering	I may not have lowered
you may not have lowered
she may not have lowered
we may not have lowered
you may not have lowered
they may not have lowered	I may not have been lowering
you may not have been lowering
she may not have been lowering
we may not have been lowering
you may not have been lowering
they may not have been lowering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I lower?
may you lower?
may she lower?
may we lower?
may you lower?
may they lower? 	may I be lowering?
may you be lowering?
may she be lowering?
may we be lowering?
may you be lowering?
may they be lowering? 	may I have lowered?
may you have lowered?
may she have lowered?
may we have lowered?
may you have lowered?
may they have lowered? 	may I have been lowering?
may you have been lowering?
may she have been lowering?
may we have been lowering?
may you have been lowering?
may they have been lowering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not lower?
may you not lower?
may she not lower?
may we not lower?
may you not lower?
may they not lower? 	may I not be lowering?
may you not be lowering?
may she not be lowering?
may we not be lowering?
may you not be lowering?
may they not be lowering? 	may I not have lowered?
may you not have lowered?
may she not have lowered?
may we not have lowered?
may you not have lowered?
may they not have lowered? 	may I not have been lowering?
may you not have been lowering?
may she not have been lowering?
may we not have been lowering?
may you not have been lowering?
may they not have been lowering?