English verb conjugation
MUST SNAFU

Regular verb: snafu - snafued - snafued

Affirmation

Simple form	V-ing form
I must snafu you must snafu he must snafu we must snafu you must snafu they must snafu	I must be snafuing you must be snafuing he must be snafuing we must be snafuing you must be snafuing they must be snafuing
Perfect	V-ing perfect
I must have snafued you must have snafued he must have snafued we must have snafued you must have snafued they must have snafued	I must have been snafuing you must have been snafuing he must have been snafuing we must have been snafuing you must have been snafuing they must have been snafuing

Negation

Simple form	V-ing form
I mustn't snafu you mustn't snafu he mustn't snafu we mustn't snafu you mustn't snafu they mustn't snafu	I mustn't be snafuing you mustn't be snafuing he mustn't be snafuing we mustn't be snafuing you mustn't be snafuing they mustn't be snafuing
Perfect	V-ing perfect
I mustn't have snafued you mustn't have snafued he mustn't have snafued we mustn't have snafued you mustn't have snafued they mustn't have snafued	I mustn't have been snafuing you mustn't have been snafuing he mustn't have been snafuing we mustn't have been snafuing you mustn't have been snafuing they mustn't have been snafuing

Interrogative form

Simple form	V-ing form
must I snafu? must you snafu? must he snafu? must we snafu? must you snafu? must they snafu?	must I be snafuing? must you be snafuing? must he be snafuing? must we be snafuing? must you be snafuing? must they be snafuing?
Perfect	V-ing perfect
must I have snafued? must you have snafued? must he have snafued? must we have snafued? must you have snafued? must they have snafued?	must I have been snafuing? must you have been snafuing? must he have been snafuing? must we have been snafuing? must you have been snafuing? must they have been snafuing?

Interro-negative form

Simple form	V-ing form
mustn't I snafu? mustn't you snafu? mustn't he snafu? mustn't we snafu? mustn't you snafu? mustn't they snafu?	mustn't I be snafuing? mustn't you be snafuing? mustn't he be snafuing? mustn't we be snafuing? mustn't you be snafuing? mustn't they be snafuing?
Perfect	V-ing perfect
mustn't I have snafued? mustn't you have snafued? mustn't he have snafued? mustn't we have snafued? mustn't you have snafued? mustn't they have snafued?	mustn't I have been snafuing? mustn't you have been snafuing? mustn't he have been snafuing? mustn't we have been snafuing? mustn't you have been snafuing? mustn't they have been snafuing?