English verb conjugation
MAY RIFFLE

Regular verb: riffle - riffled - riffled

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?