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 must not avail you must not avail she must not avail we must not avail you must not avail they must not avail	I must not be availing you must not be availing she must not be availing we must not be availing you must not be availing they must not be availing
Perfect	V-ing perfect
I must not have availed you must not have availed she must not have availed we must not have availed you must not have availed they must not have availed	I must not have been availing you must not have been availing she must not have been availing we must not have been availing you must not have been availing they must not 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
must I not avail? must you not avail? must she not avail? must we not avail? must you not avail? must they not avail?	must I not be availing? must you not be availing? must she not be availing? must we not be availing? must you not be availing? must they not be availing?
Perfect	V-ing perfect
must I not have availed? must you not have availed? must she not have availed? must we not have availed? must you not have availed? must they not have availed?	must I not have been availing? must you not have been availing? must she not have been availing? must we not have been availing? must you not have been availing? must they not have been availing?