English verb conjugation
COULD JERRY-BUILD

Irregular verb: jerry-build - jerry-built - jerry-built

Affirmation

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

Negation

Simple form	V-ing form
I couldn't jerry-build you couldn't jerry-build he couldn't jerry-build we couldn't jerry-build you couldn't jerry-build they couldn't jerry-build	I couldn't be jerry-building you couldn't be jerry-building he couldn't be jerry-building we couldn't be jerry-building you couldn't be jerry-building they couldn't be jerry-building
Perfect	V-ing perfect
I couldn't have jerry-built you couldn't have jerry-built he couldn't have jerry-built we couldn't have jerry-built you couldn't have jerry-built they couldn't have jerry-built	I couldn't have been jerry-building you couldn't have been jerry-building he couldn't have been jerry-building we couldn't have been jerry-building you couldn't have been jerry-building they couldn't have been jerry-building

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I jerry-build? couldn't you jerry-build? couldn't he jerry-build? couldn't we jerry-build? couldn't you jerry-build? couldn't they jerry-build?	couldn't I be jerry-building? couldn't you be jerry-building? couldn't he be jerry-building? couldn't we be jerry-building? couldn't you be jerry-building? couldn't they be jerry-building?
Perfect	V-ing perfect
couldn't I have jerry-built? couldn't you have jerry-built? couldn't he have jerry-built? couldn't we have jerry-built? couldn't you have jerry-built? couldn't they have jerry-built?	couldn't I have been jerry-building? couldn't you have been jerry-building? couldn't he have been jerry-building? couldn't we have been jerry-building? couldn't you have been jerry-building? couldn't they have been jerry-building?