must tax
Verbe régulier : tax - taxed- taxed
Traduction française : imposer - mettre à l'épreuve 

Affirmation 	
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I must tax
you must tax
he must tax
we must tax
you must tax
they must tax 	I must be taxing
you must be taxing
he must be taxing
we must be taxing
you must be taxing
they must be taxing	I must have taxed
you must have taxed
he must have taxed
we must have taxed
you must have taxed
they must have taxed	I must have been taxing
you must have been taxing
he must have been taxing
we must have been taxing
you must have been taxing
they must have been taxing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't tax
you mustn't tax
he mustn't tax
we mustn't tax
you mustn't tax
they mustn't tax 	I mustn't be taxing
you mustn't be taxing
he mustn't be taxing
we mustn't be taxing
you mustn't be taxing
they mustn't be taxing	I mustn't have taxed
you mustn't have taxed
he mustn't have taxed
we mustn't have taxed
you mustn't have taxed
they mustn't have taxed	I mustn't have been taxing
you mustn't have been taxing
he mustn't have been taxing
we mustn't have been taxing
you mustn't have been taxing
they mustn't have been taxing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I tax?
must you tax?
must he tax?
must we tax?
must you tax?
must they tax? 	must I be taxing?
must you be taxing?
must he be taxing?
must we be taxing?
must you be taxing?
must they be taxing? 	must I have taxed?
must you have taxed?
must he have taxed?
must we have taxed?
must you have taxed?
must they have taxed? 	must I have been taxing?
must you have been taxing?
must he have been taxing?
must we have been taxing?
must you have been taxing?
must they have been taxing? 	

Forme interro-négative 	
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mustn't I tax?
mustn't you tax?
mustn't he tax?
mustn't we tax?
mustn't you tax?
mustn't they tax? 	mustn't I be taxing?
mustn't you be taxing?
mustn't he be taxing?
mustn't we be taxing?
mustn't you be taxing?
mustn't they be taxing? 	mustn't I have taxed?
mustn't you have taxed?
mustn't he have taxed?
mustn't we have taxed?
mustn't you have taxed?
mustn't they have taxed? 	mustn't I have been taxing?
mustn't you have been taxing?
mustn't he have been taxing?
mustn't we have been taxing?
mustn't you have been taxing?
mustn't they have been taxing?