English verb conjugation
MUST FARROW

Regular verb: farrow - farrowed - farrowed

Affirmation

Simple form	V-ing form
I must farrow you must farrow he must farrow we must farrow you must farrow they must farrow	I must be farrowing you must be farrowing he must be farrowing we must be farrowing you must be farrowing they must be farrowing
Perfect	V-ing perfect
I must have farrowed you must have farrowed he must have farrowed we must have farrowed you must have farrowed they must have farrowed	I must have been farrowing you must have been farrowing he must have been farrowing we must have been farrowing you must have been farrowing they must have been farrowing

Negation

Simple form	V-ing form
I must not farrow you must not farrow he must not farrow we must not farrow you must not farrow they must not farrow	I must not be farrowing you must not be farrowing he must not be farrowing we must not be farrowing you must not be farrowing they must not be farrowing
Perfect	V-ing perfect
I must not have farrowed you must not have farrowed he must not have farrowed we must not have farrowed you must not have farrowed they must not have farrowed	I must not have been farrowing you must not have been farrowing he must not have been farrowing we must not have been farrowing you must not have been farrowing they must not have been farrowing

Interrogative form

Simple form	V-ing form
must I farrow? must you farrow? must he farrow? must we farrow? must you farrow? must they farrow?	must I be farrowing? must you be farrowing? must he be farrowing? must we be farrowing? must you be farrowing? must they be farrowing?
Perfect	V-ing perfect
must I have farrowed? must you have farrowed? must he have farrowed? must we have farrowed? must you have farrowed? must they have farrowed?	must I have been farrowing? must you have been farrowing? must he have been farrowing? must we have been farrowing? must you have been farrowing? must they have been farrowing?

Interro-negative form

Simple form	V-ing form
must I not farrow? must you not farrow? must he not farrow? must we not farrow? must you not farrow? must they not farrow?	must I not be farrowing? must you not be farrowing? must he not be farrowing? must we not be farrowing? must you not be farrowing? must they not be farrowing?
Perfect	V-ing perfect
must I not have farrowed? must you not have farrowed? must he not have farrowed? must we not have farrowed? must you not have farrowed? must they not have farrowed?	must I not have been farrowing? must you not have been farrowing? must he not have been farrowing? must we not have been farrowing? must you not have been farrowing? must they not have been farrowing?