may riffle
Regular verb: riffle - riffled- riffled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may riffle
you may riffle
he may riffle
we may riffle
you may riffle
they may riffle 	I may be riffling
you may be riffling
he may be riffling
we may be riffling
you may be riffling
they may be riffling	I may have riffled
you may have riffled
he may have riffled
we may have riffled
you may have riffled
they may have riffled	I may have been riffling
you may have been riffling
he may have been riffling
we may have been riffling
you may have been riffling
they may have been riffling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not riffle
you may not riffle
he may not riffle
we may not riffle
you may not riffle
they may not riffle 	I may not be riffling
you may not be riffling
he may not be riffling
we may not be riffling
you may not be riffling
they may not be riffling	I may not have riffled
you may not have riffled
he may not have riffled
we may not have riffled
you may not have riffled
they may not have riffled	I may not have been riffling
you may not have been riffling
he may not have been riffling
we may not have been riffling
you may not have been riffling
they may not have been riffling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I riffle?
may you riffle?
may he riffle?
may we riffle?
may you riffle?
may they riffle? 	may I be riffling?
may you be riffling?
may he be riffling?
may we be riffling?
may you be riffling?
may they be riffling? 	may I have riffled?
may you have riffled?
may he have riffled?
may we have riffled?
may you have riffled?
may they have riffled? 	may I have been riffling?
may you have been riffling?
may he have been riffling?
may we have been riffling?
may you have been riffling?
may they have been riffling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not riffle?
may you not riffle?
may he not riffle?
may we not riffle?
may you not riffle?
may they not riffle? 	may I not be riffling?
may you not be riffling?
may he not be riffling?
may we not be riffling?
may you not be riffling?
may they not be riffling? 	may I not have riffled?
may you not have riffled?
may he not have riffled?
may we not have riffled?
may you not have riffled?
may they not have riffled? 	may I not have been riffling?
may you not have been riffling?
may he not have been riffling?
may we not have been riffling?
may you not have been riffling?
may they not have been riffling?