must course
Regular verb: course - coursed- coursed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must course
you must course
she must course
we must course
you must course
they must course 	I must be coursing
you must be coursing
she must be coursing
we must be coursing
you must be coursing
they must be coursing	I must have coursed
you must have coursed
she 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
she 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 mustn't course
you mustn't course
she mustn't course
we mustn't course
you mustn't course
they mustn't course 	I mustn't be coursing
you mustn't be coursing
she mustn't be coursing
we mustn't be coursing
you mustn't be coursing
they mustn't be coursing	I mustn't have coursed
you mustn't have coursed
she mustn't have coursed
we mustn't have coursed
you mustn't have coursed
they mustn't have coursed	I mustn't have been coursing
you mustn't have been coursing
she mustn't have been coursing
we mustn't have been coursing
you mustn't have been coursing
they mustn't have been coursing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I course?
must you course?
must she course?
must we course?
must you course?
must they course? 	must I be coursing?
must you be coursing?
must she be coursing?
must we be coursing?
must you be coursing?
must they be coursing? 	must I have coursed?
must you have coursed?
must she 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 she 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 	
mustn't I course?
mustn't you course?
mustn't she course?
mustn't we course?
mustn't you course?
mustn't they course? 	mustn't I be coursing?
mustn't you be coursing?
mustn't she be coursing?
mustn't we be coursing?
mustn't you be coursing?
mustn't they be coursing? 	mustn't I have coursed?
mustn't you have coursed?
mustn't she have coursed?
mustn't we have coursed?
mustn't you have coursed?
mustn't they have coursed? 	mustn't I have been coursing?
mustn't you have been coursing?
mustn't she have been coursing?
mustn't we have been coursing?
mustn't you have been coursing?
mustn't they have been coursing?