English verb conjugation
MUST SNUFFLE

Regular verb: snuffle - snuffled - snuffled

Affirmation

Simple form	V-ing form
I must snuffle you must snuffle he must snuffle we must snuffle you must snuffle they must snuffle	I must be snuffling you must be snuffling he must be snuffling we must be snuffling you must be snuffling they must be snuffling
Perfect	V-ing perfect
I must have snuffled you must have snuffled he must have snuffled we must have snuffled you must have snuffled they must have snuffled	I must have been snuffling you must have been snuffling he must have been snuffling we must have been snuffling you must have been snuffling they must have been snuffling

Negation

Simple form	V-ing form
I mustn't snuffle you mustn't snuffle he mustn't snuffle we mustn't snuffle you mustn't snuffle they mustn't snuffle	I mustn't be snuffling you mustn't be snuffling he mustn't be snuffling we mustn't be snuffling you mustn't be snuffling they mustn't be snuffling
Perfect	V-ing perfect
I mustn't have snuffled you mustn't have snuffled he mustn't have snuffled we mustn't have snuffled you mustn't have snuffled they mustn't have snuffled	I mustn't have been snuffling you mustn't have been snuffling he mustn't have been snuffling we mustn't have been snuffling you mustn't have been snuffling they mustn't have been snuffling

Interrogative form

Simple form	V-ing form
must I snuffle? must you snuffle? must he snuffle? must we snuffle? must you snuffle? must they snuffle?	must I be snuffling? must you be snuffling? must he be snuffling? must we be snuffling? must you be snuffling? must they be snuffling?
Perfect	V-ing perfect
must I have snuffled? must you have snuffled? must he have snuffled? must we have snuffled? must you have snuffled? must they have snuffled?	must I have been snuffling? must you have been snuffling? must he have been snuffling? must we have been snuffling? must you have been snuffling? must they have been snuffling?

Interro-negative form

Simple form	V-ing form
mustn't I snuffle? mustn't you snuffle? mustn't he snuffle? mustn't we snuffle? mustn't you snuffle? mustn't they snuffle?	mustn't I be snuffling? mustn't you be snuffling? mustn't he be snuffling? mustn't we be snuffling? mustn't you be snuffling? mustn't they be snuffling?
Perfect	V-ing perfect
mustn't I have snuffled? mustn't you have snuffled? mustn't he have snuffled? mustn't we have snuffled? mustn't you have snuffled? mustn't they have snuffled?	mustn't I have been snuffling? mustn't you have been snuffling? mustn't he have been snuffling? mustn't we have been snuffling? mustn't you have been snuffling? mustn't they have been snuffling?