English verb conjugation
MUST NOD

Regular verb: nod - nodded - nodded

Affirmation

Simple form	V-ing form
I must nod you must nod he must nod we must nod you must nod they must nod	I must be nodding you must be nodding he must be nodding we must be nodding you must be nodding they must be nodding
Perfect	V-ing perfect
I must have nodded you must have nodded he must have nodded we must have nodded you must have nodded they must have nodded	I must have been nodding you must have been nodding he must have been nodding we must have been nodding you must have been nodding they must have been nodding

Negation

Simple form	V-ing form
I must not nod you must not nod he must not nod we must not nod you must not nod they must not nod	I must not be nodding you must not be nodding he must not be nodding we must not be nodding you must not be nodding they must not be nodding
Perfect	V-ing perfect
I must not have nodded you must not have nodded he must not have nodded we must not have nodded you must not have nodded they must not have nodded	I must not have been nodding you must not have been nodding he must not have been nodding we must not have been nodding you must not have been nodding they must not have been nodding

Interrogative form

Simple form	V-ing form
must I nod? must you nod? must he nod? must we nod? must you nod? must they nod?	must I be nodding? must you be nodding? must he be nodding? must we be nodding? must you be nodding? must they be nodding?
Perfect	V-ing perfect
must I have nodded? must you have nodded? must he have nodded? must we have nodded? must you have nodded? must they have nodded?	must I have been nodding? must you have been nodding? must he have been nodding? must we have been nodding? must you have been nodding? must they have been nodding?

Interro-negative form

Simple form	V-ing form
must I not nod? must you not nod? must he not nod? must we not nod? must you not nod? must they not nod?	must I not be nodding? must you not be nodding? must he not be nodding? must we not be nodding? must you not be nodding? must they not be nodding?
Perfect	V-ing perfect
must I not have nodded? must you not have nodded? must he not have nodded? must we not have nodded? must you not have nodded? must they not have nodded?	must I not have been nodding? must you not have been nodding? must he not have been nodding? must we not have been nodding? must you not have been nodding? must they not have been nodding?