must course
Regular verb: course - coursed- coursed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must course
you must course
he must course
we must course
you must course
they must course 	I must be coursing
you must be coursing
he must be coursing
we must be coursing
you must be coursing
they must be coursing	I must have coursed
you must have coursed
he must have coursed
we must have coursed
you must have coursed
they must have coursed	I must have been coursing
you must have been coursing
he must have been coursing
we must have been coursing
you must have been coursing
they must have been coursing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not course
you must not course
he must not course
we must not course
you must not course
they must not course 	I must not be coursing
you must not be coursing
he must not be coursing
we must not be coursing
you must not be coursing
they must not be coursing	I must not have coursed
you must not have coursed
he must not have coursed
we must not have coursed
you must not have coursed
they must not have coursed	I must not have been coursing
you must not have been coursing
he must not have been coursing
we must not have been coursing
you must not have been coursing
they must not have been coursing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I course?
must you course?
must he course?
must we course?
must you course?
must they course? 	must I be coursing?
must you be coursing?
must he be coursing?
must we be coursing?
must you be coursing?
must they be coursing? 	must I have coursed?
must you have coursed?
must he have coursed?
must we have coursed?
must you have coursed?
must they have coursed? 	must I have been coursing?
must you have been coursing?
must he have been coursing?
must we have been coursing?
must you have been coursing?
must they have been coursing? 	

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