must sniffle
Regular verb: sniffle - sniffled- sniffled

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

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

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

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