English verb conjugation
MUST CRUTCH

Regular verb: crutch - crutched - crutched

Affirmation

Simple form	V-ing form
I must crutch you must crutch he must crutch we must crutch you must crutch they must crutch	I must be crutching you must be crutching he must be crutching we must be crutching you must be crutching they must be crutching
Perfect	V-ing perfect
I must have crutched you must have crutched he must have crutched we must have crutched you must have crutched they must have crutched	I must have been crutching you must have been crutching he must have been crutching we must have been crutching you must have been crutching they must have been crutching

Negation

Simple form	V-ing form
I must not crutch you must not crutch he must not crutch we must not crutch you must not crutch they must not crutch	I must not be crutching you must not be crutching he must not be crutching we must not be crutching you must not be crutching they must not be crutching
Perfect	V-ing perfect
I must not have crutched you must not have crutched he must not have crutched we must not have crutched you must not have crutched they must not have crutched	I must not have been crutching you must not have been crutching he must not have been crutching we must not have been crutching you must not have been crutching they must not have been crutching

Interrogative form

Simple form	V-ing form
must I crutch? must you crutch? must he crutch? must we crutch? must you crutch? must they crutch?	must I be crutching? must you be crutching? must he be crutching? must we be crutching? must you be crutching? must they be crutching?
Perfect	V-ing perfect
must I have crutched? must you have crutched? must he have crutched? must we have crutched? must you have crutched? must they have crutched?	must I have been crutching? must you have been crutching? must he have been crutching? must we have been crutching? must you have been crutching? must they have been crutching?

Interro-negative form

Simple form	V-ing form
must I not crutch? must you not crutch? must he not crutch? must we not crutch? must you not crutch? must they not crutch?	must I not be crutching? must you not be crutching? must he not be crutching? must we not be crutching? must you not be crutching? must they not be crutching?
Perfect	V-ing perfect
must I not have crutched? must you not have crutched? must he not have crutched? must we not have crutched? must you not have crutched? must they not have crutched?	must I not have been crutching? must you not have been crutching? must he not have been crutching? must we not have been crutching? must you not have been crutching? must they not have been crutching?