English verb conjugation
COULD TAMP

Regular verb: tamp - tamped - tamped

Affirmation

Simple form	V-ing form
I could tamp you could tamp he could tamp we could tamp you could tamp they could tamp	I could be tamping you could be tamping he could be tamping we could be tamping you could be tamping they could be tamping
Perfect	V-ing perfect
I could have tamped you could have tamped he could have tamped we could have tamped you could have tamped they could have tamped	I could have been tamping you could have been tamping he could have been tamping we could have been tamping you could have been tamping they could have been tamping

Negation

Simple form	V-ing form
I could not tamp you could not tamp he could not tamp we could not tamp you could not tamp they could not tamp	I could not be tamping you could not be tamping he could not be tamping we could not be tamping you could not be tamping they could not be tamping
Perfect	V-ing perfect
I could not have tamped you could not have tamped he could not have tamped we could not have tamped you could not have tamped they could not have tamped	I could not have been tamping you could not have been tamping he could not have been tamping we could not have been tamping you could not have been tamping they could not have been tamping

Interrogative form

Simple form	V-ing form
could I tamp? could you tamp? could he tamp? could we tamp? could you tamp? could they tamp?	could I be tamping? could you be tamping? could he be tamping? could we be tamping? could you be tamping? could they be tamping?
Perfect	V-ing perfect
could I have tamped? could you have tamped? could he have tamped? could we have tamped? could you have tamped? could they have tamped?	could I have been tamping? could you have been tamping? could he have been tamping? could we have been tamping? could you have been tamping? could they have been tamping?

Interro-negative form

Simple form	V-ing form
could I not tamp? could you not tamp? could he not tamp? could we not tamp? could you not tamp? could they not tamp?	could I not be tamping? could you not be tamping? could he not be tamping? could we not be tamping? could you not be tamping? could they not be tamping?
Perfect	V-ing perfect
could I not have tamped? could you not have tamped? could he not have tamped? could we not have tamped? could you not have tamped? could they not have tamped?	could I not have been tamping? could you not have been tamping? could he not have been tamping? could we not have been tamping? could you not have been tamping? could they not have been tamping?