may gnaw
Regular verb: gnaw - gnawed- gnawed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may gnaw
you may gnaw
she may gnaw
we may gnaw
you may gnaw
they may gnaw 	I may be gnawing
you may be gnawing
she may be gnawing
we may be gnawing
you may be gnawing
they may be gnawing	I may have gnawed
you may have gnawed
she may have gnawed
we may have gnawed
you may have gnawed
they may have gnawed	I may have been gnawing
you may have been gnawing
she may have been gnawing
we may have been gnawing
you may have been gnawing
they may have been gnawing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not gnaw
you may not gnaw
she may not gnaw
we may not gnaw
you may not gnaw
they may not gnaw 	I may not be gnawing
you may not be gnawing
she may not be gnawing
we may not be gnawing
you may not be gnawing
they may not be gnawing	I may not have gnawed
you may not have gnawed
she may not have gnawed
we may not have gnawed
you may not have gnawed
they may not have gnawed	I may not have been gnawing
you may not have been gnawing
she may not have been gnawing
we may not have been gnawing
you may not have been gnawing
they may not have been gnawing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I gnaw?
may you gnaw?
may she gnaw?
may we gnaw?
may you gnaw?
may they gnaw? 	may I be gnawing?
may you be gnawing?
may she be gnawing?
may we be gnawing?
may you be gnawing?
may they be gnawing? 	may I have gnawed?
may you have gnawed?
may she have gnawed?
may we have gnawed?
may you have gnawed?
may they have gnawed? 	may I have been gnawing?
may you have been gnawing?
may she have been gnawing?
may we have been gnawing?
may you have been gnawing?
may they have been gnawing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not gnaw?
may you not gnaw?
may she not gnaw?
may we not gnaw?
may you not gnaw?
may they not gnaw? 	may I not be gnawing?
may you not be gnawing?
may she not be gnawing?
may we not be gnawing?
may you not be gnawing?
may they not be gnawing? 	may I not have gnawed?
may you not have gnawed?
may she not have gnawed?
may we not have gnawed?
may you not have gnawed?
may they not have gnawed? 	may I not have been gnawing?
may you not have been gnawing?
may she not have been gnawing?
may we not have been gnawing?
may you not have been gnawing?
may they not have been gnawing?