must smuggle
Regular verb: smuggle - smuggled- smuggled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must smuggle
you must smuggle
he must smuggle
we must smuggle
you must smuggle
they must smuggle 	I must be smuggling
you must be smuggling
he must be smuggling
we must be smuggling
you must be smuggling
they must be smuggling	I must have smuggled
you must have smuggled
he must have smuggled
we must have smuggled
you must have smuggled
they must have smuggled	I must have been smuggling
you must have been smuggling
he must have been smuggling
we must have been smuggling
you must have been smuggling
they must have been smuggling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not smuggle
you must not smuggle
he must not smuggle
we must not smuggle
you must not smuggle
they must not smuggle 	I must not be smuggling
you must not be smuggling
he must not be smuggling
we must not be smuggling
you must not be smuggling
they must not be smuggling	I must not have smuggled
you must not have smuggled
he must not have smuggled
we must not have smuggled
you must not have smuggled
they must not have smuggled	I must not have been smuggling
you must not have been smuggling
he must not have been smuggling
we must not have been smuggling
you must not have been smuggling
they must not have been smuggling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I smuggle?
must you smuggle?
must he smuggle?
must we smuggle?
must you smuggle?
must they smuggle? 	must I be smuggling?
must you be smuggling?
must he be smuggling?
must we be smuggling?
must you be smuggling?
must they be smuggling? 	must I have smuggled?
must you have smuggled?
must he have smuggled?
must we have smuggled?
must you have smuggled?
must they have smuggled? 	must I have been smuggling?
must you have been smuggling?
must he have been smuggling?
must we have been smuggling?
must you have been smuggling?
must they have been smuggling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not smuggle?
must you not smuggle?
must he not smuggle?
must we not smuggle?
must you not smuggle?
must they not smuggle? 	must I not be smuggling?
must you not be smuggling?
must he not be smuggling?
must we not be smuggling?
must you not be smuggling?
must they not be smuggling? 	must I not have smuggled?
must you not have smuggled?
must he not have smuggled?
must we not have smuggled?
must you not have smuggled?
must they not have smuggled? 	must I not have been smuggling?
must you not have been smuggling?
must he not have been smuggling?
must we not have been smuggling?
must you not have been smuggling?
must they not have been smuggling?