English verb conjugation
MUST SPLUTTER

Regular verb: splutter - spluttered - spluttered

Affirmation

Simple form	V-ing form
I must splutter you must splutter he must splutter we must splutter you must splutter they must splutter	I must be spluttering you must be spluttering he must be spluttering we must be spluttering you must be spluttering they must be spluttering
Perfect	V-ing perfect
I must have spluttered you must have spluttered he must have spluttered we must have spluttered you must have spluttered they must have spluttered	I must have been spluttering you must have been spluttering he must have been spluttering we must have been spluttering you must have been spluttering they must have been spluttering

Negation

Simple form	V-ing form
I mustn't splutter you mustn't splutter he mustn't splutter we mustn't splutter you mustn't splutter they mustn't splutter	I mustn't be spluttering you mustn't be spluttering he mustn't be spluttering we mustn't be spluttering you mustn't be spluttering they mustn't be spluttering
Perfect	V-ing perfect
I mustn't have spluttered you mustn't have spluttered he mustn't have spluttered we mustn't have spluttered you mustn't have spluttered they mustn't have spluttered	I mustn't have been spluttering you mustn't have been spluttering he mustn't have been spluttering we mustn't have been spluttering you mustn't have been spluttering they mustn't have been spluttering

Interrogative form

Simple form	V-ing form
must I splutter? must you splutter? must he splutter? must we splutter? must you splutter? must they splutter?	must I be spluttering? must you be spluttering? must he be spluttering? must we be spluttering? must you be spluttering? must they be spluttering?
Perfect	V-ing perfect
must I have spluttered? must you have spluttered? must he have spluttered? must we have spluttered? must you have spluttered? must they have spluttered?	must I have been spluttering? must you have been spluttering? must he have been spluttering? must we have been spluttering? must you have been spluttering? must they have been spluttering?

Interro-negative form

Simple form	V-ing form
mustn't I splutter? mustn't you splutter? mustn't he splutter? mustn't we splutter? mustn't you splutter? mustn't they splutter?	mustn't I be spluttering? mustn't you be spluttering? mustn't he be spluttering? mustn't we be spluttering? mustn't you be spluttering? mustn't they be spluttering?
Perfect	V-ing perfect
mustn't I have spluttered? mustn't you have spluttered? mustn't he have spluttered? mustn't we have spluttered? mustn't you have spluttered? mustn't they have spluttered?	mustn't I have been spluttering? mustn't you have been spluttering? mustn't he have been spluttering? mustn't we have been spluttering? mustn't you have been spluttering? mustn't they have been spluttering?