English verb conjugation
MUST AVAIL

Regular verb: avail - availed - availed

Affirmation

Simple form	V-ing form
I must avail you must avail she must avail we must avail you must avail they must avail	I must be availing you must be availing she must be availing we must be availing you must be availing they must be availing
Perfect	V-ing perfect
I must have availed you must have availed she must have availed we must have availed you must have availed they must have availed	I must have been availing you must have been availing she must have been availing we must have been availing you must have been availing they must have been availing

Negation

Simple form	V-ing form
I mustn't avail you mustn't avail she mustn't avail we mustn't avail you mustn't avail they mustn't avail	I mustn't be availing you mustn't be availing she mustn't be availing we mustn't be availing you mustn't be availing they mustn't be availing
Perfect	V-ing perfect
I mustn't have availed you mustn't have availed she mustn't have availed we mustn't have availed you mustn't have availed they mustn't have availed	I mustn't have been availing you mustn't have been availing she mustn't have been availing we mustn't have been availing you mustn't have been availing they mustn't have been availing

Interrogative form

Simple form	V-ing form
must I avail? must you avail? must she avail? must we avail? must you avail? must they avail?	must I be availing? must you be availing? must she be availing? must we be availing? must you be availing? must they be availing?
Perfect	V-ing perfect
must I have availed? must you have availed? must she have availed? must we have availed? must you have availed? must they have availed?	must I have been availing? must you have been availing? must she have been availing? must we have been availing? must you have been availing? must they have been availing?

Interro-negative form

Simple form	V-ing form
mustn't I avail? mustn't you avail? mustn't she avail? mustn't we avail? mustn't you avail? mustn't they avail?	mustn't I be availing? mustn't you be availing? mustn't she be availing? mustn't we be availing? mustn't you be availing? mustn't they be availing?
Perfect	V-ing perfect
mustn't I have availed? mustn't you have availed? mustn't she have availed? mustn't we have availed? mustn't you have availed? mustn't they have availed?	mustn't I have been availing? mustn't you have been availing? mustn't she have been availing? mustn't we have been availing? mustn't you have been availing? mustn't they have been availing?