must line
Regular verb: line - lined- lined

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must line
you must line
he must line
we must line
you must line
they must line 	I must be lining
you must be lining
he must be lining
we must be lining
you must be lining
they must be lining	I must have lined
you must have lined
he must have lined
we must have lined
you must have lined
they must have lined	I must have been lining
you must have been lining
he must have been lining
we must have been lining
you must have been lining
they must have been lining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't line
you mustn't line
he mustn't line
we mustn't line
you mustn't line
they mustn't line 	I mustn't be lining
you mustn't be lining
he mustn't be lining
we mustn't be lining
you mustn't be lining
they mustn't be lining	I mustn't have lined
you mustn't have lined
he mustn't have lined
we mustn't have lined
you mustn't have lined
they mustn't have lined	I mustn't have been lining
you mustn't have been lining
he mustn't have been lining
we mustn't have been lining
you mustn't have been lining
they mustn't have been lining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I line?
must you line?
must he line?
must we line?
must you line?
must they line? 	must I be lining?
must you be lining?
must he be lining?
must we be lining?
must you be lining?
must they be lining? 	must I have lined?
must you have lined?
must he have lined?
must we have lined?
must you have lined?
must they have lined? 	must I have been lining?
must you have been lining?
must he have been lining?
must we have been lining?
must you have been lining?
must they have been lining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I line?
mustn't you line?
mustn't he line?
mustn't we line?
mustn't you line?
mustn't they line? 	mustn't I be lining?
mustn't you be lining?
mustn't he be lining?
mustn't we be lining?
mustn't you be lining?
mustn't they be lining? 	mustn't I have lined?
mustn't you have lined?
mustn't he have lined?
mustn't we have lined?
mustn't you have lined?
mustn't they have lined? 	mustn't I have been lining?
mustn't you have been lining?
mustn't he have been lining?
mustn't we have been lining?
mustn't you have been lining?
mustn't they have been lining?