must spot-weld
Verbe régulier : spot-weld - spot-welded- spot-welded

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must spot-weld
you must spot-weld
he must spot-weld
we must spot-weld
you must spot-weld
they must spot-weld 	I must be spot-welding
you must be spot-welding
he must be spot-welding
we must be spot-welding
you must be spot-welding
they must be spot-welding	I must have spot-welded
you must have spot-welded
he must have spot-welded
we must have spot-welded
you must have spot-welded
they must have spot-welded	I must have been spot-welding
you must have been spot-welding
he must have been spot-welding
we must have been spot-welding
you must have been spot-welding
they must have been spot-welding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't spot-weld
you mustn't spot-weld
he mustn't spot-weld
we mustn't spot-weld
you mustn't spot-weld
they mustn't spot-weld 	I mustn't be spot-welding
you mustn't be spot-welding
he mustn't be spot-welding
we mustn't be spot-welding
you mustn't be spot-welding
they mustn't be spot-welding	I mustn't have spot-welded
you mustn't have spot-welded
he mustn't have spot-welded
we mustn't have spot-welded
you mustn't have spot-welded
they mustn't have spot-welded	I mustn't have been spot-welding
you mustn't have been spot-welding
he mustn't have been spot-welding
we mustn't have been spot-welding
you mustn't have been spot-welding
they mustn't have been spot-welding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I spot-weld?
must you spot-weld?
must he spot-weld?
must we spot-weld?
must you spot-weld?
must they spot-weld? 	must I be spot-welding?
must you be spot-welding?
must he be spot-welding?
must we be spot-welding?
must you be spot-welding?
must they be spot-welding? 	must I have spot-welded?
must you have spot-welded?
must he have spot-welded?
must we have spot-welded?
must you have spot-welded?
must they have spot-welded? 	must I have been spot-welding?
must you have been spot-welding?
must he have been spot-welding?
must we have been spot-welding?
must you have been spot-welding?
must they have been spot-welding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I spot-weld?
mustn't you spot-weld?
mustn't he spot-weld?
mustn't we spot-weld?
mustn't you spot-weld?
mustn't they spot-weld? 	mustn't I be spot-welding?
mustn't you be spot-welding?
mustn't he be spot-welding?
mustn't we be spot-welding?
mustn't you be spot-welding?
mustn't they be spot-welding? 	mustn't I have spot-welded?
mustn't you have spot-welded?
mustn't he have spot-welded?
mustn't we have spot-welded?
mustn't you have spot-welded?
mustn't they have spot-welded? 	mustn't I have been spot-welding?
mustn't you have been spot-welding?
mustn't he have been spot-welding?
mustn't we have been spot-welding?
mustn't you have been spot-welding?
mustn't they have been spot-welding?