English verb conjugation
MUST FILCH

Regular verb: filch - filched - filched

Affirmation

Simple form	V-ing form
I must filch you must filch he must filch we must filch you must filch they must filch	I must be filching you must be filching he must be filching we must be filching you must be filching they must be filching
Perfect	V-ing perfect
I must have filched you must have filched he must have filched we must have filched you must have filched they must have filched	I must have been filching you must have been filching he must have been filching we must have been filching you must have been filching they must have been filching

Negation

Simple form	V-ing form
I must not filch you must not filch he must not filch we must not filch you must not filch they must not filch	I must not be filching you must not be filching he must not be filching we must not be filching you must not be filching they must not be filching
Perfect	V-ing perfect
I must not have filched you must not have filched he must not have filched we must not have filched you must not have filched they must not have filched	I must not have been filching you must not have been filching he must not have been filching we must not have been filching you must not have been filching they must not have been filching

Interrogative form

Simple form	V-ing form
must I filch? must you filch? must he filch? must we filch? must you filch? must they filch?	must I be filching? must you be filching? must he be filching? must we be filching? must you be filching? must they be filching?
Perfect	V-ing perfect
must I have filched? must you have filched? must he have filched? must we have filched? must you have filched? must they have filched?	must I have been filching? must you have been filching? must he have been filching? must we have been filching? must you have been filching? must they have been filching?

Interro-negative form

Simple form	V-ing form
must I not filch? must you not filch? must he not filch? must we not filch? must you not filch? must they not filch?	must I not be filching? must you not be filching? must he not be filching? must we not be filching? must you not be filching? must they not be filching?
Perfect	V-ing perfect
must I not have filched? must you not have filched? must he not have filched? must we not have filched? must you not have filched? must they not have filched?	must I not have been filching? must you not have been filching? must he not have been filching? must we not have been filching? must you not have been filching? must they not have been filching?