must foul
Verbe régulier : foul - fouled- fouled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must foul
you must foul
he must foul
we must foul
you must foul
they must foul 	I must be fouling
you must be fouling
he must be fouling
we must be fouling
you must be fouling
they must be fouling	I must have fouled
you must have fouled
he must have fouled
we must have fouled
you must have fouled
they must have fouled	I must have been fouling
you must have been fouling
he must have been fouling
we must have been fouling
you must have been fouling
they must have been fouling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't foul
you mustn't foul
he mustn't foul
we mustn't foul
you mustn't foul
they mustn't foul 	I mustn't be fouling
you mustn't be fouling
he mustn't be fouling
we mustn't be fouling
you mustn't be fouling
they mustn't be fouling	I mustn't have fouled
you mustn't have fouled
he mustn't have fouled
we mustn't have fouled
you mustn't have fouled
they mustn't have fouled	I mustn't have been fouling
you mustn't have been fouling
he mustn't have been fouling
we mustn't have been fouling
you mustn't have been fouling
they mustn't have been fouling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I foul?
must you foul?
must he foul?
must we foul?
must you foul?
must they foul? 	must I be fouling?
must you be fouling?
must he be fouling?
must we be fouling?
must you be fouling?
must they be fouling? 	must I have fouled?
must you have fouled?
must he have fouled?
must we have fouled?
must you have fouled?
must they have fouled? 	must I have been fouling?
must you have been fouling?
must he have been fouling?
must we have been fouling?
must you have been fouling?
must they have been fouling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I foul?
mustn't you foul?
mustn't he foul?
mustn't we foul?
mustn't you foul?
mustn't they foul? 	mustn't I be fouling?
mustn't you be fouling?
mustn't he be fouling?
mustn't we be fouling?
mustn't you be fouling?
mustn't they be fouling? 	mustn't I have fouled?
mustn't you have fouled?
mustn't he have fouled?
mustn't we have fouled?
mustn't you have fouled?
mustn't they have fouled? 	mustn't I have been fouling?
mustn't you have been fouling?
mustn't he have been fouling?
mustn't we have been fouling?
mustn't you have been fouling?
mustn't they have been fouling?