English verb conjugation
MUST BOBBLE

Regular verb: bobble - bobbled - bobbled

Affirmation

Simple form	V-ing form
I must bobble you must bobble he must bobble we must bobble you must bobble they must bobble	I must be bobbling you must be bobbling he must be bobbling we must be bobbling you must be bobbling they must be bobbling
Perfect	V-ing perfect
I must have bobbled you must have bobbled he must have bobbled we must have bobbled you must have bobbled they must have bobbled	I must have been bobbling you must have been bobbling he must have been bobbling we must have been bobbling you must have been bobbling they must have been bobbling

Negation

Simple form	V-ing form
I mustn't bobble you mustn't bobble he mustn't bobble we mustn't bobble you mustn't bobble they mustn't bobble	I mustn't be bobbling you mustn't be bobbling he mustn't be bobbling we mustn't be bobbling you mustn't be bobbling they mustn't be bobbling
Perfect	V-ing perfect
I mustn't have bobbled you mustn't have bobbled he mustn't have bobbled we mustn't have bobbled you mustn't have bobbled they mustn't have bobbled	I mustn't have been bobbling you mustn't have been bobbling he mustn't have been bobbling we mustn't have been bobbling you mustn't have been bobbling they mustn't have been bobbling

Interrogative form

Simple form	V-ing form
must I bobble? must you bobble? must he bobble? must we bobble? must you bobble? must they bobble?	must I be bobbling? must you be bobbling? must he be bobbling? must we be bobbling? must you be bobbling? must they be bobbling?
Perfect	V-ing perfect
must I have bobbled? must you have bobbled? must he have bobbled? must we have bobbled? must you have bobbled? must they have bobbled?	must I have been bobbling? must you have been bobbling? must he have been bobbling? must we have been bobbling? must you have been bobbling? must they have been bobbling?

Interro-negative form

Simple form	V-ing form
mustn't I bobble? mustn't you bobble? mustn't he bobble? mustn't we bobble? mustn't you bobble? mustn't they bobble?	mustn't I be bobbling? mustn't you be bobbling? mustn't he be bobbling? mustn't we be bobbling? mustn't you be bobbling? mustn't they be bobbling?
Perfect	V-ing perfect
mustn't I have bobbled? mustn't you have bobbled? mustn't he have bobbled? mustn't we have bobbled? mustn't you have bobbled? mustn't they have bobbled?	mustn't I have been bobbling? mustn't you have been bobbling? mustn't he have been bobbling? mustn't we have been bobbling? mustn't you have been bobbling? mustn't they have been bobbling?