English verb conjugation
MUST SUNBATHE

Regular verb: sunbathe - sunbathed - sunbathed

Affirmation

Simple form	V-ing form
I must sunbathe you must sunbathe she must sunbathe we must sunbathe you must sunbathe they must sunbathe	I must be sunbathing you must be sunbathing she must be sunbathing we must be sunbathing you must be sunbathing they must be sunbathing
Perfect	V-ing perfect
I must have sunbathed you must have sunbathed she must have sunbathed we must have sunbathed you must have sunbathed they must have sunbathed	I must have been sunbathing you must have been sunbathing she must have been sunbathing we must have been sunbathing you must have been sunbathing they must have been sunbathing

Negation

Simple form	V-ing form
I mustn't sunbathe you mustn't sunbathe she mustn't sunbathe we mustn't sunbathe you mustn't sunbathe they mustn't sunbathe	I mustn't be sunbathing you mustn't be sunbathing she mustn't be sunbathing we mustn't be sunbathing you mustn't be sunbathing they mustn't be sunbathing
Perfect	V-ing perfect
I mustn't have sunbathed you mustn't have sunbathed she mustn't have sunbathed we mustn't have sunbathed you mustn't have sunbathed they mustn't have sunbathed	I mustn't have been sunbathing you mustn't have been sunbathing she mustn't have been sunbathing we mustn't have been sunbathing you mustn't have been sunbathing they mustn't have been sunbathing

Interrogative form

Simple form	V-ing form
must I sunbathe? must you sunbathe? must she sunbathe? must we sunbathe? must you sunbathe? must they sunbathe?	must I be sunbathing? must you be sunbathing? must she be sunbathing? must we be sunbathing? must you be sunbathing? must they be sunbathing?
Perfect	V-ing perfect
must I have sunbathed? must you have sunbathed? must she have sunbathed? must we have sunbathed? must you have sunbathed? must they have sunbathed?	must I have been sunbathing? must you have been sunbathing? must she have been sunbathing? must we have been sunbathing? must you have been sunbathing? must they have been sunbathing?

Interro-negative form

Simple form	V-ing form
mustn't I sunbathe? mustn't you sunbathe? mustn't she sunbathe? mustn't we sunbathe? mustn't you sunbathe? mustn't they sunbathe?	mustn't I be sunbathing? mustn't you be sunbathing? mustn't she be sunbathing? mustn't we be sunbathing? mustn't you be sunbathing? mustn't they be sunbathing?
Perfect	V-ing perfect
mustn't I have sunbathed? mustn't you have sunbathed? mustn't she have sunbathed? mustn't we have sunbathed? mustn't you have sunbathed? mustn't they have sunbathed?	mustn't I have been sunbathing? mustn't you have been sunbathing? mustn't she have been sunbathing? mustn't we have been sunbathing? mustn't you have been sunbathing? mustn't they have been sunbathing?