English verb conjugation
MUST NEIGH

Regular verb: neigh - neighed - neighed

Affirmation

Simple form	V-ing form
I must neigh you must neigh he must neigh we must neigh you must neigh they must neigh	I must be neighing you must be neighing he must be neighing we must be neighing you must be neighing they must be neighing
Perfect	V-ing perfect
I must have neighed you must have neighed he must have neighed we must have neighed you must have neighed they must have neighed	I must have been neighing you must have been neighing he must have been neighing we must have been neighing you must have been neighing they must have been neighing

Negation

Simple form	V-ing form
I mustn't neigh you mustn't neigh he mustn't neigh we mustn't neigh you mustn't neigh they mustn't neigh	I mustn't be neighing you mustn't be neighing he mustn't be neighing we mustn't be neighing you mustn't be neighing they mustn't be neighing
Perfect	V-ing perfect
I mustn't have neighed you mustn't have neighed he mustn't have neighed we mustn't have neighed you mustn't have neighed they mustn't have neighed	I mustn't have been neighing you mustn't have been neighing he mustn't have been neighing we mustn't have been neighing you mustn't have been neighing they mustn't have been neighing

Interrogative form

Simple form	V-ing form
must I neigh? must you neigh? must he neigh? must we neigh? must you neigh? must they neigh?	must I be neighing? must you be neighing? must he be neighing? must we be neighing? must you be neighing? must they be neighing?
Perfect	V-ing perfect
must I have neighed? must you have neighed? must he have neighed? must we have neighed? must you have neighed? must they have neighed?	must I have been neighing? must you have been neighing? must he have been neighing? must we have been neighing? must you have been neighing? must they have been neighing?

Interro-negative form

Simple form	V-ing form
mustn't I neigh? mustn't you neigh? mustn't he neigh? mustn't we neigh? mustn't you neigh? mustn't they neigh?	mustn't I be neighing? mustn't you be neighing? mustn't he be neighing? mustn't we be neighing? mustn't you be neighing? mustn't they be neighing?
Perfect	V-ing perfect
mustn't I have neighed? mustn't you have neighed? mustn't he have neighed? mustn't we have neighed? mustn't you have neighed? mustn't they have neighed?	mustn't I have been neighing? mustn't you have been neighing? mustn't he have been neighing? mustn't we have been neighing? mustn't you have been neighing? mustn't they have been neighing?