English verb conjugation
MAY PIFFLE

Regular verb: piffle - piffled - piffled

Affirmation

Simple form	V-ing form
I may piffle you may piffle he may piffle we may piffle you may piffle they may piffle	I may be piffling you may be piffling he may be piffling we may be piffling you may be piffling they may be piffling
Perfect	V-ing perfect
I may have piffled you may have piffled he may have piffled we may have piffled you may have piffled they may have piffled	I may have been piffling you may have been piffling he may have been piffling we may have been piffling you may have been piffling they may have been piffling

Negation

Simple form	V-ing form
I mayn't piffle you mayn't piffle he mayn't piffle we mayn't piffle you mayn't piffle they mayn't piffle	I mayn't be piffling you mayn't be piffling he mayn't be piffling we mayn't be piffling you mayn't be piffling they mayn't be piffling
Perfect	V-ing perfect
I mayn't have piffled you mayn't have piffled he mayn't have piffled we mayn't have piffled you mayn't have piffled they mayn't have piffled	I mayn't have been piffling you mayn't have been piffling he mayn't have been piffling we mayn't have been piffling you mayn't have been piffling they mayn't have been piffling

Interrogative form

Simple form	V-ing form
may I piffle? may you piffle? may he piffle? may we piffle? may you piffle? may they piffle?	may I be piffling? may you be piffling? may he be piffling? may we be piffling? may you be piffling? may they be piffling?
Perfect	V-ing perfect
may I have piffled? may you have piffled? may he have piffled? may we have piffled? may you have piffled? may they have piffled?	may I have been piffling? may you have been piffling? may he have been piffling? may we have been piffling? may you have been piffling? may they have been piffling?

Interro-negative form

Simple form	V-ing form
mayn't I piffle? mayn't you piffle? mayn't he piffle? mayn't we piffle? mayn't you piffle? mayn't they piffle?	mayn't I be piffling? mayn't you be piffling? mayn't he be piffling? mayn't we be piffling? mayn't you be piffling? mayn't they be piffling?
Perfect	V-ing perfect
mayn't I have piffled? mayn't you have piffled? mayn't he have piffled? mayn't we have piffled? mayn't you have piffled? mayn't they have piffled?	mayn't I have been piffling? mayn't you have been piffling? mayn't he have been piffling? mayn't we have been piffling? mayn't you have been piffling? mayn't they have been piffling?