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 couldn't tamp you couldn't tamp he couldn't tamp we couldn't tamp you couldn't tamp they couldn't tamp	I couldn't be tamping you couldn't be tamping he couldn't be tamping we couldn't be tamping you couldn't be tamping they couldn't be tamping
Perfect	V-ing perfect
I couldn't have tamped you couldn't have tamped he couldn't have tamped we couldn't have tamped you couldn't have tamped they couldn't have tamped	I couldn't have been tamping you couldn't have been tamping he couldn't have been tamping we couldn't have been tamping you couldn't have been tamping they couldn't 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
couldn't I tamp? couldn't you tamp? couldn't he tamp? couldn't we tamp? couldn't you tamp? couldn't they tamp?	couldn't I be tamping? couldn't you be tamping? couldn't he be tamping? couldn't we be tamping? couldn't you be tamping? couldn't they be tamping?
Perfect	V-ing perfect
couldn't I have tamped? couldn't you have tamped? couldn't he have tamped? couldn't we have tamped? couldn't you have tamped? couldn't they have tamped?	couldn't I have been tamping? couldn't you have been tamping? couldn't he have been tamping? couldn't we have been tamping? couldn't you have been tamping? couldn't they have been tamping?