must skulk
Verbe régulier : skulk - skulked- skulked
Traduction française : rôder 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must skulk
you must skulk
she must skulk
we must skulk
you must skulk
they must skulk 	I must be skulking
you must be skulking
she must be skulking
we must be skulking
you must be skulking
they must be skulking	I must have skulked
you must have skulked
she must have skulked
we must have skulked
you must have skulked
they must have skulked	I must have been skulking
you must have been skulking
she must have been skulking
we must have been skulking
you must have been skulking
they must have been skulking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't skulk
you mustn't skulk
she mustn't skulk
we mustn't skulk
you mustn't skulk
they mustn't skulk 	I mustn't be skulking
you mustn't be skulking
she mustn't be skulking
we mustn't be skulking
you mustn't be skulking
they mustn't be skulking	I mustn't have skulked
you mustn't have skulked
she mustn't have skulked
we mustn't have skulked
you mustn't have skulked
they mustn't have skulked	I mustn't have been skulking
you mustn't have been skulking
she mustn't have been skulking
we mustn't have been skulking
you mustn't have been skulking
they mustn't have been skulking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I skulk?
must you skulk?
must she skulk?
must we skulk?
must you skulk?
must they skulk? 	must I be skulking?
must you be skulking?
must she be skulking?
must we be skulking?
must you be skulking?
must they be skulking? 	must I have skulked?
must you have skulked?
must she have skulked?
must we have skulked?
must you have skulked?
must they have skulked? 	must I have been skulking?
must you have been skulking?
must she have been skulking?
must we have been skulking?
must you have been skulking?
must they have been skulking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I skulk?
mustn't you skulk?
mustn't she skulk?
mustn't we skulk?
mustn't you skulk?
mustn't they skulk? 	mustn't I be skulking?
mustn't you be skulking?
mustn't she be skulking?
mustn't we be skulking?
mustn't you be skulking?
mustn't they be skulking? 	mustn't I have skulked?
mustn't you have skulked?
mustn't she have skulked?
mustn't we have skulked?
mustn't you have skulked?
mustn't they have skulked? 	mustn't I have been skulking?
mustn't you have been skulking?
mustn't she have been skulking?
mustn't we have been skulking?
mustn't you have been skulking?
mustn't they have been skulking?