must terrace
Verbe régulier : terrace - terraced- terraced

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must terrace
you must terrace
he must terrace
we must terrace
you must terrace
they must terrace 	I must be terracing
you must be terracing
he must be terracing
we must be terracing
you must be terracing
they must be terracing	I must have terraced
you must have terraced
he must have terraced
we must have terraced
you must have terraced
they must have terraced	I must have been terracing
you must have been terracing
he must have been terracing
we must have been terracing
you must have been terracing
they must have been terracing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't terrace
you mustn't terrace
he mustn't terrace
we mustn't terrace
you mustn't terrace
they mustn't terrace 	I mustn't be terracing
you mustn't be terracing
he mustn't be terracing
we mustn't be terracing
you mustn't be terracing
they mustn't be terracing	I mustn't have terraced
you mustn't have terraced
he mustn't have terraced
we mustn't have terraced
you mustn't have terraced
they mustn't have terraced	I mustn't have been terracing
you mustn't have been terracing
he mustn't have been terracing
we mustn't have been terracing
you mustn't have been terracing
they mustn't have been terracing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I terrace?
must you terrace?
must he terrace?
must we terrace?
must you terrace?
must they terrace? 	must I be terracing?
must you be terracing?
must he be terracing?
must we be terracing?
must you be terracing?
must they be terracing? 	must I have terraced?
must you have terraced?
must he have terraced?
must we have terraced?
must you have terraced?
must they have terraced? 	must I have been terracing?
must you have been terracing?
must he have been terracing?
must we have been terracing?
must you have been terracing?
must they have been terracing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I terrace?
mustn't you terrace?
mustn't he terrace?
mustn't we terrace?
mustn't you terrace?
mustn't they terrace? 	mustn't I be terracing?
mustn't you be terracing?
mustn't he be terracing?
mustn't we be terracing?
mustn't you be terracing?
mustn't they be terracing? 	mustn't I have terraced?
mustn't you have terraced?
mustn't he have terraced?
mustn't we have terraced?
mustn't you have terraced?
mustn't they have terraced? 	mustn't I have been terracing?
mustn't you have been terracing?
mustn't he have been terracing?
mustn't we have been terracing?
mustn't you have been terracing?
mustn't they have been terracing?