English verb conjugation
MUST TAMBOUR

Regular verb: tambour - tamboured - tamboured

Affirmation

Simple form	V-ing form
I must tambour you must tambour he must tambour we must tambour you must tambour they must tambour	I must be tambouring you must be tambouring he must be tambouring we must be tambouring you must be tambouring they must be tambouring
Perfect	V-ing perfect
I must have tamboured you must have tamboured he must have tamboured we must have tamboured you must have tamboured they must have tamboured	I must have been tambouring you must have been tambouring he must have been tambouring we must have been tambouring you must have been tambouring they must have been tambouring

Negation

Simple form	V-ing form
I mustn't tambour you mustn't tambour he mustn't tambour we mustn't tambour you mustn't tambour they mustn't tambour	I mustn't be tambouring you mustn't be tambouring he mustn't be tambouring we mustn't be tambouring you mustn't be tambouring they mustn't be tambouring
Perfect	V-ing perfect
I mustn't have tamboured you mustn't have tamboured he mustn't have tamboured we mustn't have tamboured you mustn't have tamboured they mustn't have tamboured	I mustn't have been tambouring you mustn't have been tambouring he mustn't have been tambouring we mustn't have been tambouring you mustn't have been tambouring they mustn't have been tambouring

Interrogative form

Simple form	V-ing form
must I tambour? must you tambour? must he tambour? must we tambour? must you tambour? must they tambour?	must I be tambouring? must you be tambouring? must he be tambouring? must we be tambouring? must you be tambouring? must they be tambouring?
Perfect	V-ing perfect
must I have tamboured? must you have tamboured? must he have tamboured? must we have tamboured? must you have tamboured? must they have tamboured?	must I have been tambouring? must you have been tambouring? must he have been tambouring? must we have been tambouring? must you have been tambouring? must they have been tambouring?

Interro-negative form

Simple form	V-ing form
mustn't I tambour? mustn't you tambour? mustn't he tambour? mustn't we tambour? mustn't you tambour? mustn't they tambour?	mustn't I be tambouring? mustn't you be tambouring? mustn't he be tambouring? mustn't we be tambouring? mustn't you be tambouring? mustn't they be tambouring?
Perfect	V-ing perfect
mustn't I have tamboured? mustn't you have tamboured? mustn't he have tamboured? mustn't we have tamboured? mustn't you have tamboured? mustn't they have tamboured?	mustn't I have been tambouring? mustn't you have been tambouring? mustn't he have been tambouring? mustn't we have been tambouring? mustn't you have been tambouring? mustn't they have been tambouring?