English verb conjugation
CAN SNIFFLE

Regular verb: sniffle - sniffled - sniffled

Affirmation

Simple form	V-ing form
I can sniffle you can sniffle he can sniffle we can sniffle you can sniffle they can sniffle	I can be sniffling you can be sniffling he can be sniffling we can be sniffling you can be sniffling they can be sniffling
Perfect	V-ing perfect
I can have sniffled you can have sniffled he can have sniffled we can have sniffled you can have sniffled they can have sniffled	I can have been sniffling you can have been sniffling he can have been sniffling we can have been sniffling you can have been sniffling they can have been sniffling

Negation

Simple form	V-ing form
I cannot sniffle you cannot sniffle he cannot sniffle we cannot sniffle you cannot sniffle they cannot sniffle	I cannot be sniffling you cannot be sniffling he cannot be sniffling we cannot be sniffling you cannot be sniffling they cannot be sniffling
Perfect	V-ing perfect
I cannot have sniffled you cannot have sniffled he cannot have sniffled we cannot have sniffled you cannot have sniffled they cannot have sniffled	I cannot have been sniffling you cannot have been sniffling he cannot have been sniffling we cannot have been sniffling you cannot have been sniffling they cannot have been sniffling

Interrogative form

Simple form	V-ing form
can I sniffle? can you sniffle? can he sniffle? can we sniffle? can you sniffle? can they sniffle?	can I be sniffling? can you be sniffling? can he be sniffling? can we be sniffling? can you be sniffling? can they be sniffling?
Perfect	V-ing perfect
can I have sniffled? can you have sniffled? can he have sniffled? can we have sniffled? can you have sniffled? can they have sniffled?	can I have been sniffling? can you have been sniffling? can he have been sniffling? can we have been sniffling? can you have been sniffling? can they have been sniffling?

Interro-negative form

Simple form	V-ing form
can I not sniffle? can you not sniffle? can he not sniffle? can we not sniffle? can you not sniffle? can they not sniffle?	can I not be sniffling? can you not be sniffling? can he not be sniffling? can we not be sniffling? can you not be sniffling? can they not be sniffling?
Perfect	V-ing perfect
can I not have sniffled? can you not have sniffled? can he not have sniffled? can we not have sniffled? can you not have sniffled? can they not have sniffled?	can I not have been sniffling? can you not have been sniffling? can he not have been sniffling? can we not have been sniffling? can you not have been sniffling? can they not have been sniffling?