must inhale
Regular verb: inhale - inhaled- inhaled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must inhale
you must inhale
she must inhale
we must inhale
you must inhale
they must inhale 	I must be inhaling
you must be inhaling
she must be inhaling
we must be inhaling
you must be inhaling
they must be inhaling	I must have inhaled
you must have inhaled
she must have inhaled
we must have inhaled
you must have inhaled
they must have inhaled	I must have been inhaling
you must have been inhaling
she must have been inhaling
we must have been inhaling
you must have been inhaling
they must have been inhaling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not inhale
you must not inhale
she must not inhale
we must not inhale
you must not inhale
they must not inhale 	I must not be inhaling
you must not be inhaling
she must not be inhaling
we must not be inhaling
you must not be inhaling
they must not be inhaling	I must not have inhaled
you must not have inhaled
she must not have inhaled
we must not have inhaled
you must not have inhaled
they must not have inhaled	I must not have been inhaling
you must not have been inhaling
she must not have been inhaling
we must not have been inhaling
you must not have been inhaling
they must not have been inhaling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I inhale?
must you inhale?
must she inhale?
must we inhale?
must you inhale?
must they inhale? 	must I be inhaling?
must you be inhaling?
must she be inhaling?
must we be inhaling?
must you be inhaling?
must they be inhaling? 	must I have inhaled?
must you have inhaled?
must she have inhaled?
must we have inhaled?
must you have inhaled?
must they have inhaled? 	must I have been inhaling?
must you have been inhaling?
must she have been inhaling?
must we have been inhaling?
must you have been inhaling?
must they have been inhaling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not inhale?
must you not inhale?
must she not inhale?
must we not inhale?
must you not inhale?
must they not inhale? 	must I not be inhaling?
must you not be inhaling?
must she not be inhaling?
must we not be inhaling?
must you not be inhaling?
must they not be inhaling? 	must I not have inhaled?
must you not have inhaled?
must she not have inhaled?
must we not have inhaled?
must you not have inhaled?
must they not have inhaled? 	must I not have been inhaling?
must you not have been inhaling?
must she not have been inhaling?
must we not have been inhaling?
must you not have been inhaling?
must they not have been inhaling?