English verb conjugation
MUST SCUTTLE

Regular verb: scuttle - scuttled - scuttled

Affirmation

Simple form	V-ing form
I must scuttle you must scuttle he must scuttle we must scuttle you must scuttle they must scuttle	I must be scuttling you must be scuttling he must be scuttling we must be scuttling you must be scuttling they must be scuttling
Perfect	V-ing perfect
I must have scuttled you must have scuttled he must have scuttled we must have scuttled you must have scuttled they must have scuttled	I must have been scuttling you must have been scuttling he must have been scuttling we must have been scuttling you must have been scuttling they must have been scuttling

Negation

Simple form	V-ing form
I mustn't scuttle you mustn't scuttle he mustn't scuttle we mustn't scuttle you mustn't scuttle they mustn't scuttle	I mustn't be scuttling you mustn't be scuttling he mustn't be scuttling we mustn't be scuttling you mustn't be scuttling they mustn't be scuttling
Perfect	V-ing perfect
I mustn't have scuttled you mustn't have scuttled he mustn't have scuttled we mustn't have scuttled you mustn't have scuttled they mustn't have scuttled	I mustn't have been scuttling you mustn't have been scuttling he mustn't have been scuttling we mustn't have been scuttling you mustn't have been scuttling they mustn't have been scuttling

Interrogative form

Simple form	V-ing form
must I scuttle? must you scuttle? must he scuttle? must we scuttle? must you scuttle? must they scuttle?	must I be scuttling? must you be scuttling? must he be scuttling? must we be scuttling? must you be scuttling? must they be scuttling?
Perfect	V-ing perfect
must I have scuttled? must you have scuttled? must he have scuttled? must we have scuttled? must you have scuttled? must they have scuttled?	must I have been scuttling? must you have been scuttling? must he have been scuttling? must we have been scuttling? must you have been scuttling? must they have been scuttling?

Interro-negative form

Simple form	V-ing form
mustn't I scuttle? mustn't you scuttle? mustn't he scuttle? mustn't we scuttle? mustn't you scuttle? mustn't they scuttle?	mustn't I be scuttling? mustn't you be scuttling? mustn't he be scuttling? mustn't we be scuttling? mustn't you be scuttling? mustn't they be scuttling?
Perfect	V-ing perfect
mustn't I have scuttled? mustn't you have scuttled? mustn't he have scuttled? mustn't we have scuttled? mustn't you have scuttled? mustn't they have scuttled?	mustn't I have been scuttling? mustn't you have been scuttling? mustn't he have been scuttling? mustn't we have been scuttling? mustn't you have been scuttling? mustn't they have been scuttling?