English verb conjugation
CAN BUILD

Irregular verb: build - built - built

Affirmation

Simple form	V-ing form
I can build you can build he can build we can build you can build they can build	I can be building you can be building he can be building we can be building you can be building they can be building
Perfect	V-ing perfect
I can have built you can have built he can have built we can have built you can have built they can have built	I can have been building you can have been building he can have been building we can have been building you can have been building they can have been building

Negation

Simple form	V-ing form
I cannot build you cannot build he cannot build we cannot build you cannot build they cannot build	I cannot be building you cannot be building he cannot be building we cannot be building you cannot be building they cannot be building
Perfect	V-ing perfect
I cannot have built you cannot have built he cannot have built we cannot have built you cannot have built they cannot have built	I cannot have been building you cannot have been building he cannot have been building we cannot have been building you cannot have been building they cannot have been building

Interrogative form

Simple form	V-ing form
can I build? can you build? can he build? can we build? can you build? can they build?	can I be building? can you be building? can he be building? can we be building? can you be building? can they be building?
Perfect	V-ing perfect
can I have built? can you have built? can he have built? can we have built? can you have built? can they have built?	can I have been building? can you have been building? can he have been building? can we have been building? can you have been building? can they have been building?

Interro-negative form

Simple form	V-ing form
can I not build? can you not build? can he not build? can we not build? can you not build? can they not build?	can I not be building? can you not be building? can he not be building? can we not be building? can you not be building? can they not be building?
Perfect	V-ing perfect
can I not have built? can you not have built? can he not have built? can we not have built? can you not have built? can they not have built?	can I not have been building? can you not have been building? can he not have been building? can we not have been building? can you not have been building? can they not have been building?