may gravel
Regular verb: gravel - gravelled- gravelled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may gravel
you may gravel
she may gravel
we may gravel
you may gravel
they may gravel 	I may be gravelling
you may be gravelling
she may be gravelling
we may be gravelling
you may be gravelling
they may be gravelling	I may have gravelled
you may have gravelled
she may have gravelled
we may have gravelled
you may have gravelled
they may have gravelled	I may have been gravelling
you may have been gravelling
she may have been gravelling
we may have been gravelling
you may have been gravelling
they may have been gravelling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not gravel
you may not gravel
she may not gravel
we may not gravel
you may not gravel
they may not gravel 	I may not be gravelling
you may not be gravelling
she may not be gravelling
we may not be gravelling
you may not be gravelling
they may not be gravelling	I may not have gravelled
you may not have gravelled
she may not have gravelled
we may not have gravelled
you may not have gravelled
they may not have gravelled	I may not have been gravelling
you may not have been gravelling
she may not have been gravelling
we may not have been gravelling
you may not have been gravelling
they may not have been gravelling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I gravel?
may you gravel?
may she gravel?
may we gravel?
may you gravel?
may they gravel? 	may I be gravelling?
may you be gravelling?
may she be gravelling?
may we be gravelling?
may you be gravelling?
may they be gravelling? 	may I have gravelled?
may you have gravelled?
may she have gravelled?
may we have gravelled?
may you have gravelled?
may they have gravelled? 	may I have been gravelling?
may you have been gravelling?
may she have been gravelling?
may we have been gravelling?
may you have been gravelling?
may they have been gravelling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not gravel?
may you not gravel?
may she not gravel?
may we not gravel?
may you not gravel?
may they not gravel? 	may I not be gravelling?
may you not be gravelling?
may she not be gravelling?
may we not be gravelling?
may you not be gravelling?
may they not be gravelling? 	may I not have gravelled?
may you not have gravelled?
may she not have gravelled?
may we not have gravelled?
may you not have gravelled?
may they not have gravelled? 	may I not have been gravelling?
may you not have been gravelling?
may she not have been gravelling?
may we not have been gravelling?
may you not have been gravelling?
may they not have been gravelling?