English verb conjugation
MUST WELCH

Regular verb: welch - welched - welched

Affirmation

Simple form	V-ing form
I must welch you must welch he must welch we must welch you must welch they must welch	I must be welching you must be welching he must be welching we must be welching you must be welching they must be welching
Perfect	V-ing perfect
I must have welched you must have welched he must have welched we must have welched you must have welched they must have welched	I must have been welching you must have been welching he must have been welching we must have been welching you must have been welching they must have been welching

Negation

Simple form	V-ing form
I must not welch you must not welch he must not welch we must not welch you must not welch they must not welch	I must not be welching you must not be welching he must not be welching we must not be welching you must not be welching they must not be welching
Perfect	V-ing perfect
I must not have welched you must not have welched he must not have welched we must not have welched you must not have welched they must not have welched	I must not have been welching you must not have been welching he must not have been welching we must not have been welching you must not have been welching they must not have been welching

Interrogative form

Simple form	V-ing form
must I welch? must you welch? must he welch? must we welch? must you welch? must they welch?	must I be welching? must you be welching? must he be welching? must we be welching? must you be welching? must they be welching?
Perfect	V-ing perfect
must I have welched? must you have welched? must he have welched? must we have welched? must you have welched? must they have welched?	must I have been welching? must you have been welching? must he have been welching? must we have been welching? must you have been welching? must they have been welching?

Interro-negative form

Simple form	V-ing form
must I not welch? must you not welch? must he not welch? must we not welch? must you not welch? must they not welch?	must I not be welching? must you not be welching? must he not be welching? must we not be welching? must you not be welching? must they not be welching?
Perfect	V-ing perfect
must I not have welched? must you not have welched? must he not have welched? must we not have welched? must you not have welched? must they not have welched?	must I not have been welching? must you not have been welching? must he not have been welching? must we not have been welching? must you not have been welching? must they not have been welching?