English verb conjugation
MUST SPOT-WELD

Regular verb: spot-weld - spot-welded - spot-welded

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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

Negation

Simple form	V-ing form
I must not spot-weld you must not spot-weld he must not spot-weld we must not spot-weld you must not spot-weld they must not spot-weld	I must not be spot-welding you must not be spot-welding he must not be spot-welding we must not be spot-welding you must not be spot-welding they must not be spot-welding
Perfect	V-ing perfect
I must not have spot-welded you must not have spot-welded he must not have spot-welded we must not have spot-welded you must not have spot-welded they must not have spot-welded	I must not have been spot-welding you must not have been spot-welding he must not have been spot-welding we must not have been spot-welding you must not have been spot-welding they must not have been spot-welding

Interrogative form

Simple form	V-ing form
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?
Perfect	V-ing perfect
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?

Interro-negative form

Simple form	V-ing form
must I not spot-weld? must you not spot-weld? must he not spot-weld? must we not spot-weld? must you not spot-weld? must they not spot-weld?	must I not be spot-welding? must you not be spot-welding? must he not be spot-welding? must we not be spot-welding? must you not be spot-welding? must they not be spot-welding?
Perfect	V-ing perfect
must I not have spot-welded? must you not have spot-welded? must he not have spot-welded? must we not have spot-welded? must you not have spot-welded? must they not have spot-welded?	must I not have been spot-welding? must you not have been spot-welding? must he not have been spot-welding? must we not have been spot-welding? must you not have been spot-welding? must they not have been spot-welding?