English verb conjugation
MUST NIP

Regular verb: nip - nipped - nipped

Affirmation

Simple form	V-ing form
I must nip you must nip he must nip we must nip you must nip they must nip	I must be nipping you must be nipping he must be nipping we must be nipping you must be nipping they must be nipping
Perfect	V-ing perfect
I must have nipped you must have nipped he must have nipped we must have nipped you must have nipped they must have nipped	I must have been nipping you must have been nipping he must have been nipping we must have been nipping you must have been nipping they must have been nipping

Negation

Simple form	V-ing form
I must not nip you must not nip he must not nip we must not nip you must not nip they must not nip	I must not be nipping you must not be nipping he must not be nipping we must not be nipping you must not be nipping they must not be nipping
Perfect	V-ing perfect
I must not have nipped you must not have nipped he must not have nipped we must not have nipped you must not have nipped they must not have nipped	I must not have been nipping you must not have been nipping he must not have been nipping we must not have been nipping you must not have been nipping they must not have been nipping

Interrogative form

Simple form	V-ing form
must I nip? must you nip? must he nip? must we nip? must you nip? must they nip?	must I be nipping? must you be nipping? must he be nipping? must we be nipping? must you be nipping? must they be nipping?
Perfect	V-ing perfect
must I have nipped? must you have nipped? must he have nipped? must we have nipped? must you have nipped? must they have nipped?	must I have been nipping? must you have been nipping? must he have been nipping? must we have been nipping? must you have been nipping? must they have been nipping?

Interro-negative form

Simple form	V-ing form
must I not nip? must you not nip? must he not nip? must we not nip? must you not nip? must they not nip?	must I not be nipping? must you not be nipping? must he not be nipping? must we not be nipping? must you not be nipping? must they not be nipping?
Perfect	V-ing perfect
must I not have nipped? must you not have nipped? must he not have nipped? must we not have nipped? must you not have nipped? must they not have nipped?	must I not have been nipping? must you not have been nipping? must he not have been nipping? must we not have been nipping? must you not have been nipping? must they not have been nipping?