may grease
Regular verb: grease - greased- greased

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may grease
you may grease
he may grease
we may grease
you may grease
they may grease 	I may be greasing
you may be greasing
he may be greasing
we may be greasing
you may be greasing
they may be greasing	I may have greased
you may have greased
he may have greased
we may have greased
you may have greased
they may have greased	I may have been greasing
you may have been greasing
he may have been greasing
we may have been greasing
you may have been greasing
they may have been greasing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not grease
you may not grease
he may not grease
we may not grease
you may not grease
they may not grease 	I may not be greasing
you may not be greasing
he may not be greasing
we may not be greasing
you may not be greasing
they may not be greasing	I may not have greased
you may not have greased
he may not have greased
we may not have greased
you may not have greased
they may not have greased	I may not have been greasing
you may not have been greasing
he may not have been greasing
we may not have been greasing
you may not have been greasing
they may not have been greasing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I grease?
may you grease?
may he grease?
may we grease?
may you grease?
may they grease? 	may I be greasing?
may you be greasing?
may he be greasing?
may we be greasing?
may you be greasing?
may they be greasing? 	may I have greased?
may you have greased?
may he have greased?
may we have greased?
may you have greased?
may they have greased? 	may I have been greasing?
may you have been greasing?
may he have been greasing?
may we have been greasing?
may you have been greasing?
may they have been greasing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not grease?
may you not grease?
may he not grease?
may we not grease?
may you not grease?
may they not grease? 	may I not be greasing?
may you not be greasing?
may he not be greasing?
may we not be greasing?
may you not be greasing?
may they not be greasing? 	may I not have greased?
may you not have greased?
may he not have greased?
may we not have greased?
may you not have greased?
may they not have greased? 	may I not have been greasing?
may you not have been greasing?
may he not have been greasing?
may we not have been greasing?
may you not have been greasing?
may they not have been greasing?