English verb conjugation
MUST PUTTER

Regular verb: putter - puttered - puttered

Affirmation

Simple form	V-ing form
I must putter you must putter she must putter we must putter you must putter they must putter	I must be puttering you must be puttering she must be puttering we must be puttering you must be puttering they must be puttering
Perfect	V-ing perfect
I must have puttered you must have puttered she must have puttered we must have puttered you must have puttered they must have puttered	I must have been puttering you must have been puttering she must have been puttering we must have been puttering you must have been puttering they must have been puttering

Negation

Simple form	V-ing form
I mustn't putter you mustn't putter she mustn't putter we mustn't putter you mustn't putter they mustn't putter	I mustn't be puttering you mustn't be puttering she mustn't be puttering we mustn't be puttering you mustn't be puttering they mustn't be puttering
Perfect	V-ing perfect
I mustn't have puttered you mustn't have puttered she mustn't have puttered we mustn't have puttered you mustn't have puttered they mustn't have puttered	I mustn't have been puttering you mustn't have been puttering she mustn't have been puttering we mustn't have been puttering you mustn't have been puttering they mustn't have been puttering

Interrogative form

Simple form	V-ing form
must I putter? must you putter? must she putter? must we putter? must you putter? must they putter?	must I be puttering? must you be puttering? must she be puttering? must we be puttering? must you be puttering? must they be puttering?
Perfect	V-ing perfect
must I have puttered? must you have puttered? must she have puttered? must we have puttered? must you have puttered? must they have puttered?	must I have been puttering? must you have been puttering? must she have been puttering? must we have been puttering? must you have been puttering? must they have been puttering?

Interro-negative form

Simple form	V-ing form
mustn't I putter? mustn't you putter? mustn't she putter? mustn't we putter? mustn't you putter? mustn't they putter?	mustn't I be puttering? mustn't you be puttering? mustn't she be puttering? mustn't we be puttering? mustn't you be puttering? mustn't they be puttering?
Perfect	V-ing perfect
mustn't I have puttered? mustn't you have puttered? mustn't she have puttered? mustn't we have puttered? mustn't you have puttered? mustn't they have puttered?	mustn't I have been puttering? mustn't you have been puttering? mustn't she have been puttering? mustn't we have been puttering? mustn't you have been puttering? mustn't they have been puttering?