can snuff
Regular verb: snuff - snuffed- snuffed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can snuff
you can snuff
she can snuff
we can snuff
you can snuff
they can snuff 	I can be snuffing
you can be snuffing
she can be snuffing
we can be snuffing
you can be snuffing
they can be snuffing	I can have snuffed
you can have snuffed
she can have snuffed
we can have snuffed
you can have snuffed
they can have snuffed	I can have been snuffing
you can have been snuffing
she can have been snuffing
we can have been snuffing
you can have been snuffing
they can have been snuffing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot snuff
you cannot snuff
she cannot snuff
we cannot snuff
you cannot snuff
they cannot snuff 	I cannot be snuffing
you cannot be snuffing
she cannot be snuffing
we cannot be snuffing
you cannot be snuffing
they cannot be snuffing	I cannot have snuffed
you cannot have snuffed
she cannot have snuffed
we cannot have snuffed
you cannot have snuffed
they cannot have snuffed	I cannot have been snuffing
you cannot have been snuffing
she cannot have been snuffing
we cannot have been snuffing
you cannot have been snuffing
they cannot have been snuffing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I snuff?
can you snuff?
can she snuff?
can we snuff?
can you snuff?
can they snuff? 	can I be snuffing?
can you be snuffing?
can she be snuffing?
can we be snuffing?
can you be snuffing?
can they be snuffing? 	can I have snuffed?
can you have snuffed?
can she have snuffed?
can we have snuffed?
can you have snuffed?
can they have snuffed? 	can I have been snuffing?
can you have been snuffing?
can she have been snuffing?
can we have been snuffing?
can you have been snuffing?
can they have been snuffing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not snuff?
can you not snuff?
can she not snuff?
can we not snuff?
can you not snuff?
can they not snuff? 	can I not be snuffing?
can you not be snuffing?
can she not be snuffing?
can we not be snuffing?
can you not be snuffing?
can they not be snuffing? 	can I not have snuffed?
can you not have snuffed?
can she not have snuffed?
can we not have snuffed?
can you not have snuffed?
can they not have snuffed? 	can I not have been snuffing?
can you not have been snuffing?
can she not have been snuffing?
can we not have been snuffing?
can you not have been snuffing?
can they not have been snuffing?