can sniffle
Regular verb: sniffle - sniffled- sniffled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I can't sniffle
you can't sniffle
he can't sniffle
we can't sniffle
you can't sniffle
they can't sniffle 	I can't be sniffling
you can't be sniffling
he can't be sniffling
we can't be sniffling
you can't be sniffling
they can't be sniffling	I can't have sniffled
you can't have sniffled
he can't have sniffled
we can't have sniffled
you can't have sniffled
they can't have sniffled	I can't have been sniffling
you can't have been sniffling
he can't have been sniffling
we can't have been sniffling
you can't have been sniffling
they can't have been sniffling	

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