must sock
Regular verb: sock - socked- socked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must sock
you must sock
he must sock
we must sock
you must sock
they must sock 	I must be socking
you must be socking
he must be socking
we must be socking
you must be socking
they must be socking	I must have socked
you must have socked
he must have socked
we must have socked
you must have socked
they must have socked	I must have been socking
you must have been socking
he must have been socking
we must have been socking
you must have been socking
they must have been socking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't sock
you mustn't sock
he mustn't sock
we mustn't sock
you mustn't sock
they mustn't sock 	I mustn't be socking
you mustn't be socking
he mustn't be socking
we mustn't be socking
you mustn't be socking
they mustn't be socking	I mustn't have socked
you mustn't have socked
he mustn't have socked
we mustn't have socked
you mustn't have socked
they mustn't have socked	I mustn't have been socking
you mustn't have been socking
he mustn't have been socking
we mustn't have been socking
you mustn't have been socking
they mustn't have been socking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I sock?
must you sock?
must he sock?
must we sock?
must you sock?
must they sock? 	must I be socking?
must you be socking?
must he be socking?
must we be socking?
must you be socking?
must they be socking? 	must I have socked?
must you have socked?
must he have socked?
must we have socked?
must you have socked?
must they have socked? 	must I have been socking?
must you have been socking?
must he have been socking?
must we have been socking?
must you have been socking?
must they have been socking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I sock?
mustn't you sock?
mustn't he sock?
mustn't we sock?
mustn't you sock?
mustn't they sock? 	mustn't I be socking?
mustn't you be socking?
mustn't he be socking?
mustn't we be socking?
mustn't you be socking?
mustn't they be socking? 	mustn't I have socked?
mustn't you have socked?
mustn't he have socked?
mustn't we have socked?
mustn't you have socked?
mustn't they have socked? 	mustn't I have been socking?
mustn't you have been socking?
mustn't he have been socking?
mustn't we have been socking?
mustn't you have been socking?
mustn't they have been socking?