English verb conjugation
MUST SNIVEL

Regular verb: snivel - snivelled - snivelled

Affirmation

Simple form	V-ing form
I must snivel you must snivel he must snivel we must snivel you must snivel they must snivel	I must be snivelling you must be snivelling he must be snivelling we must be snivelling you must be snivelling they must be snivelling
Perfect	V-ing perfect
I must have snivelled you must have snivelled he must have snivelled we must have snivelled you must have snivelled they must have snivelled	I must have been snivelling you must have been snivelling he must have been snivelling we must have been snivelling you must have been snivelling they must have been snivelling

Negation

Simple form	V-ing form
I must not snivel you must not snivel he must not snivel we must not snivel you must not snivel they must not snivel	I must not be snivelling you must not be snivelling he must not be snivelling we must not be snivelling you must not be snivelling they must not be snivelling
Perfect	V-ing perfect
I must not have snivelled you must not have snivelled he must not have snivelled we must not have snivelled you must not have snivelled they must not have snivelled	I must not have been snivelling you must not have been snivelling he must not have been snivelling we must not have been snivelling you must not have been snivelling they must not have been snivelling

Interrogative form

Simple form	V-ing form
must I snivel? must you snivel? must he snivel? must we snivel? must you snivel? must they snivel?	must I be snivelling? must you be snivelling? must he be snivelling? must we be snivelling? must you be snivelling? must they be snivelling?
Perfect	V-ing perfect
must I have snivelled? must you have snivelled? must he have snivelled? must we have snivelled? must you have snivelled? must they have snivelled?	must I have been snivelling? must you have been snivelling? must he have been snivelling? must we have been snivelling? must you have been snivelling? must they have been snivelling?

Interro-negative form

Simple form	V-ing form
must I not snivel? must you not snivel? must he not snivel? must we not snivel? must you not snivel? must they not snivel?	must I not be snivelling? must you not be snivelling? must he not be snivelling? must we not be snivelling? must you not be snivelling? must they not be snivelling?
Perfect	V-ing perfect
must I not have snivelled? must you not have snivelled? must he not have snivelled? must we not have snivelled? must you not have snivelled? must they not have snivelled?	must I not have been snivelling? must you not have been snivelling? must he not have been snivelling? must we not have been snivelling? must you not have been snivelling? must they not have been snivelling?