must outrun
Irregular verb: outrun - outran- outrun

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must outrun
you must outrun
he must outrun
we must outrun
you must outrun
they must outrun 	I must be outrunning
you must be outrunning
he must be outrunning
we must be outrunning
you must be outrunning
they must be outrunning	I must have outrun
you must have outrun
he must have outrun
we must have outrun
you must have outrun
they must have outrun	I must have been outrunning
you must have been outrunning
he must have been outrunning
we must have been outrunning
you must have been outrunning
they must have been outrunning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not outrun
you must not outrun
he must not outrun
we must not outrun
you must not outrun
they must not outrun 	I must not be outrunning
you must not be outrunning
he must not be outrunning
we must not be outrunning
you must not be outrunning
they must not be outrunning	I must not have outrun
you must not have outrun
he must not have outrun
we must not have outrun
you must not have outrun
they must not have outrun	I must not have been outrunning
you must not have been outrunning
he must not have been outrunning
we must not have been outrunning
you must not have been outrunning
they must not have been outrunning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I outrun?
must you outrun?
must he outrun?
must we outrun?
must you outrun?
must they outrun? 	must I be outrunning?
must you be outrunning?
must he be outrunning?
must we be outrunning?
must you be outrunning?
must they be outrunning? 	must I have outrun?
must you have outrun?
must he have outrun?
must we have outrun?
must you have outrun?
must they have outrun? 	must I have been outrunning?
must you have been outrunning?
must he have been outrunning?
must we have been outrunning?
must you have been outrunning?
must they have been outrunning? 	

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