must skin-dive
Verbe irrégulier : skin-dive - skin-dived, skin-dove- skin-dived

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must skin-dive
you must skin-dive
he must skin-dive
we must skin-dive
you must skin-dive
they must skin-dive 	I must be skin-diving
you must be skin-diving
he must be skin-diving
we must be skin-diving
you must be skin-diving
they must be skin-diving	I must have skin-dived
you must have skin-dived
he must have skin-dived
we must have skin-dived
you must have skin-dived
they must have skin-dived	I must have been skin-diving
you must have been skin-diving
he must have been skin-diving
we must have been skin-diving
you must have been skin-diving
they must have been skin-diving	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't skin-dive
you mustn't skin-dive
he mustn't skin-dive
we mustn't skin-dive
you mustn't skin-dive
they mustn't skin-dive 	I mustn't be skin-diving
you mustn't be skin-diving
he mustn't be skin-diving
we mustn't be skin-diving
you mustn't be skin-diving
they mustn't be skin-diving	I mustn't have skin-dived
you mustn't have skin-dived
he mustn't have skin-dived
we mustn't have skin-dived
you mustn't have skin-dived
they mustn't have skin-dived	I mustn't have been skin-diving
you mustn't have been skin-diving
he mustn't have been skin-diving
we mustn't have been skin-diving
you mustn't have been skin-diving
they mustn't have been skin-diving	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I skin-dive?
must you skin-dive?
must he skin-dive?
must we skin-dive?
must you skin-dive?
must they skin-dive? 	must I be skin-diving?
must you be skin-diving?
must he be skin-diving?
must we be skin-diving?
must you be skin-diving?
must they be skin-diving? 	must I have skin-dived?
must you have skin-dived?
must he have skin-dived?
must we have skin-dived?
must you have skin-dived?
must they have skin-dived? 	must I have been skin-diving?
must you have been skin-diving?
must he have been skin-diving?
must we have been skin-diving?
must you have been skin-diving?
must they have been skin-diving? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I skin-dive?
mustn't you skin-dive?
mustn't he skin-dive?
mustn't we skin-dive?
mustn't you skin-dive?
mustn't they skin-dive? 	mustn't I be skin-diving?
mustn't you be skin-diving?
mustn't he be skin-diving?
mustn't we be skin-diving?
mustn't you be skin-diving?
mustn't they be skin-diving? 	mustn't I have skin-dived?
mustn't you have skin-dived?
mustn't he have skin-dived?
mustn't we have skin-dived?
mustn't you have skin-dived?
mustn't they have skin-dived? 	mustn't I have been skin-diving?
mustn't you have been skin-diving?
mustn't he have been skin-diving?
mustn't we have been skin-diving?
mustn't you have been skin-diving?
mustn't they have been skin-diving?