English verb conjugation
MUST SANDWICH

Regular verb: sandwich - sandwiched - sandwiched

Affirmation

Simple form	V-ing form
I must sandwich you must sandwich he must sandwich we must sandwich you must sandwich they must sandwich	I must be sandwiching you must be sandwiching he must be sandwiching we must be sandwiching you must be sandwiching they must be sandwiching
Perfect	V-ing perfect
I must have sandwiched you must have sandwiched he must have sandwiched we must have sandwiched you must have sandwiched they must have sandwiched	I must have been sandwiching you must have been sandwiching he must have been sandwiching we must have been sandwiching you must have been sandwiching they must have been sandwiching

Negation

Simple form	V-ing form
I mustn't sandwich you mustn't sandwich he mustn't sandwich we mustn't sandwich you mustn't sandwich they mustn't sandwich	I mustn't be sandwiching you mustn't be sandwiching he mustn't be sandwiching we mustn't be sandwiching you mustn't be sandwiching they mustn't be sandwiching
Perfect	V-ing perfect
I mustn't have sandwiched you mustn't have sandwiched he mustn't have sandwiched we mustn't have sandwiched you mustn't have sandwiched they mustn't have sandwiched	I mustn't have been sandwiching you mustn't have been sandwiching he mustn't have been sandwiching we mustn't have been sandwiching you mustn't have been sandwiching they mustn't have been sandwiching

Interrogative form

Simple form	V-ing form
must I sandwich? must you sandwich? must he sandwich? must we sandwich? must you sandwich? must they sandwich?	must I be sandwiching? must you be sandwiching? must he be sandwiching? must we be sandwiching? must you be sandwiching? must they be sandwiching?
Perfect	V-ing perfect
must I have sandwiched? must you have sandwiched? must he have sandwiched? must we have sandwiched? must you have sandwiched? must they have sandwiched?	must I have been sandwiching? must you have been sandwiching? must he have been sandwiching? must we have been sandwiching? must you have been sandwiching? must they have been sandwiching?

Interro-negative form

Simple form	V-ing form
mustn't I sandwich? mustn't you sandwich? mustn't he sandwich? mustn't we sandwich? mustn't you sandwich? mustn't they sandwich?	mustn't I be sandwiching? mustn't you be sandwiching? mustn't he be sandwiching? mustn't we be sandwiching? mustn't you be sandwiching? mustn't they be sandwiching?
Perfect	V-ing perfect
mustn't I have sandwiched? mustn't you have sandwiched? mustn't he have sandwiched? mustn't we have sandwiched? mustn't you have sandwiched? mustn't they have sandwiched?	mustn't I have been sandwiching? mustn't you have been sandwiching? mustn't he have been sandwiching? mustn't we have been sandwiching? mustn't you have been sandwiching? mustn't they have been sandwiching?