English verb conjugation
CAN PURFLE

Regular verb: purfle - purfled - purfled

Affirmation

Simple form	V-ing form
I can purfle you can purfle he can purfle we can purfle you can purfle they can purfle	I can be purfling you can be purfling he can be purfling we can be purfling you can be purfling they can be purfling
Perfect	V-ing perfect
I can have purfled you can have purfled he can have purfled we can have purfled you can have purfled they can have purfled	I can have been purfling you can have been purfling he can have been purfling we can have been purfling you can have been purfling they can have been purfling

Negation

Simple form	V-ing form
I can't purfle you can't purfle he can't purfle we can't purfle you can't purfle they can't purfle	I can't be purfling you can't be purfling he can't be purfling we can't be purfling you can't be purfling they can't be purfling
Perfect	V-ing perfect
I can't have purfled you can't have purfled he can't have purfled we can't have purfled you can't have purfled they can't have purfled	I can't have been purfling you can't have been purfling he can't have been purfling we can't have been purfling you can't have been purfling they can't have been purfling

Interrogative form

Simple form	V-ing form
can I purfle? can you purfle? can he purfle? can we purfle? can you purfle? can they purfle?	can I be purfling? can you be purfling? can he be purfling? can we be purfling? can you be purfling? can they be purfling?
Perfect	V-ing perfect
can I have purfled? can you have purfled? can he have purfled? can we have purfled? can you have purfled? can they have purfled?	can I have been purfling? can you have been purfling? can he have been purfling? can we have been purfling? can you have been purfling? can they have been purfling?

Interro-negative form

Simple form	V-ing form
can't I purfle? can't you purfle? can't he purfle? can't we purfle? can't you purfle? can't they purfle?	can't I be purfling? can't you be purfling? can't he be purfling? can't we be purfling? can't you be purfling? can't they be purfling?
Perfect	V-ing perfect
can't I have purfled? can't you have purfled? can't he have purfled? can't we have purfled? can't you have purfled? can't they have purfled?	can't I have been purfling? can't you have been purfling? can't he have been purfling? can't we have been purfling? can't you have been purfling? can't they have been purfling?