English verb conjugation
MUST NICHE

Regular verb: niche - niched - niched

Affirmation

Simple form	V-ing form
I must niche you must niche she must niche we must niche you must niche they must niche	I must be niching you must be niching she must be niching we must be niching you must be niching they must be niching
Perfect	V-ing perfect
I must have niched you must have niched she must have niched we must have niched you must have niched they must have niched	I must have been niching you must have been niching she must have been niching we must have been niching you must have been niching they must have been niching

Negation

Simple form	V-ing form
I mustn't niche you mustn't niche she mustn't niche we mustn't niche you mustn't niche they mustn't niche	I mustn't be niching you mustn't be niching she mustn't be niching we mustn't be niching you mustn't be niching they mustn't be niching
Perfect	V-ing perfect
I mustn't have niched you mustn't have niched she mustn't have niched we mustn't have niched you mustn't have niched they mustn't have niched	I mustn't have been niching you mustn't have been niching she mustn't have been niching we mustn't have been niching you mustn't have been niching they mustn't have been niching

Interrogative form

Simple form	V-ing form
must I niche? must you niche? must she niche? must we niche? must you niche? must they niche?	must I be niching? must you be niching? must she be niching? must we be niching? must you be niching? must they be niching?
Perfect	V-ing perfect
must I have niched? must you have niched? must she have niched? must we have niched? must you have niched? must they have niched?	must I have been niching? must you have been niching? must she have been niching? must we have been niching? must you have been niching? must they have been niching?

Interro-negative form

Simple form	V-ing form
mustn't I niche? mustn't you niche? mustn't she niche? mustn't we niche? mustn't you niche? mustn't they niche?	mustn't I be niching? mustn't you be niching? mustn't she be niching? mustn't we be niching? mustn't you be niching? mustn't they be niching?
Perfect	V-ing perfect
mustn't I have niched? mustn't you have niched? mustn't she have niched? mustn't we have niched? mustn't you have niched? mustn't they have niched?	mustn't I have been niching? mustn't you have been niching? mustn't she have been niching? mustn't we have been niching? mustn't you have been niching? mustn't they have been niching?