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 mustn't snivel you mustn't snivel he mustn't snivel we mustn't snivel you mustn't snivel they mustn't snivel	I mustn't be snivelling you mustn't be snivelling he mustn't be snivelling we mustn't be snivelling you mustn't be snivelling they mustn't be snivelling
Perfect	V-ing perfect
I mustn't have snivelled you mustn't have snivelled he mustn't have snivelled we mustn't have snivelled you mustn't have snivelled they mustn't have snivelled	I mustn't have been snivelling you mustn't have been snivelling he mustn't have been snivelling we mustn't have been snivelling you mustn't have been snivelling they mustn't 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
mustn't I snivel? mustn't you snivel? mustn't he snivel? mustn't we snivel? mustn't you snivel? mustn't they snivel?	mustn't I be snivelling? mustn't you be snivelling? mustn't he be snivelling? mustn't we be snivelling? mustn't you be snivelling? mustn't they be snivelling?
Perfect	V-ing perfect
mustn't I have snivelled? mustn't you have snivelled? mustn't he have snivelled? mustn't we have snivelled? mustn't you have snivelled? mustn't they have snivelled?	mustn't I have been snivelling? mustn't you have been snivelling? mustn't he have been snivelling? mustn't we have been snivelling? mustn't you have been snivelling? mustn't they have been snivelling?