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 mustn't nod you mustn't nod he mustn't nod we mustn't nod you mustn't nod they mustn't nod	I mustn't be nodding you mustn't be nodding he mustn't be nodding we mustn't be nodding you mustn't be nodding they mustn't be nodding
Perfect	V-ing perfect
I mustn't have nodded you mustn't have nodded he mustn't have nodded we mustn't have nodded you mustn't have nodded they mustn't have nodded	I mustn't have been nodding you mustn't have been nodding he mustn't have been nodding we mustn't have been nodding you mustn't have been nodding they mustn't 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
mustn't I nod? mustn't you nod? mustn't he nod? mustn't we nod? mustn't you nod? mustn't they nod?	mustn't I be nodding? mustn't you be nodding? mustn't he be nodding? mustn't we be nodding? mustn't you be nodding? mustn't they be nodding?
Perfect	V-ing perfect
mustn't I have nodded? mustn't you have nodded? mustn't he have nodded? mustn't we have nodded? mustn't you have nodded? mustn't they have nodded?	mustn't I have been nodding? mustn't you have been nodding? mustn't he have been nodding? mustn't we have been nodding? mustn't you have been nodding? mustn't they have been nodding?