English verb conjugation
CAN WELD

Regular verb: weld - welded - welded

Affirmation

Simple form	V-ing form
I can weld you can weld she can weld we can weld you can weld they can weld	I can be welding you can be welding she can be welding we can be welding you can be welding they can be welding
Perfect	V-ing perfect
I can have welded you can have welded she can have welded we can have welded you can have welded they can have welded	I can have been welding you can have been welding she can have been welding we can have been welding you can have been welding they can have been welding

Negation

Simple form	V-ing form
I can't weld you can't weld she can't weld we can't weld you can't weld they can't weld	I can't be welding you can't be welding she can't be welding we can't be welding you can't be welding they can't be welding
Perfect	V-ing perfect
I can't have welded you can't have welded she can't have welded we can't have welded you can't have welded they can't have welded	I can't have been welding you can't have been welding she can't have been welding we can't have been welding you can't have been welding they can't have been welding

Interrogative form

Simple form	V-ing form
can I weld? can you weld? can she weld? can we weld? can you weld? can they weld?	can I be welding? can you be welding? can she be welding? can we be welding? can you be welding? can they be welding?
Perfect	V-ing perfect
can I have welded? can you have welded? can she have welded? can we have welded? can you have welded? can they have welded?	can I have been welding? can you have been welding? can she have been welding? can we have been welding? can you have been welding? can they have been welding?

Interro-negative form

Simple form	V-ing form
can't I weld? can't you weld? can't she weld? can't we weld? can't you weld? can't they weld?	can't I be welding? can't you be welding? can't she be welding? can't we be welding? can't you be welding? can't they be welding?
Perfect	V-ing perfect
can't I have welded? can't you have welded? can't she have welded? can't we have welded? can't you have welded? can't they have welded?	can't I have been welding? can't you have been welding? can't she have been welding? can't we have been welding? can't you have been welding? can't they have been welding?