English verb conjugation
COULD ZINC

Regular verb: zinc - zinced - zinced

Affirmation

Simple form	V-ing form
I could zinc you could zinc he could zinc we could zinc you could zinc they could zinc	I could be zincing you could be zincing he could be zincing we could be zincing you could be zincing they could be zincing
Perfect	V-ing perfect
I could have zinced you could have zinced he could have zinced we could have zinced you could have zinced they could have zinced	I could have been zincing you could have been zincing he could have been zincing we could have been zincing you could have been zincing they could have been zincing

Negation

Simple form	V-ing form
I couldn't zinc you couldn't zinc he couldn't zinc we couldn't zinc you couldn't zinc they couldn't zinc	I couldn't be zincing you couldn't be zincing he couldn't be zincing we couldn't be zincing you couldn't be zincing they couldn't be zincing
Perfect	V-ing perfect
I couldn't have zinced you couldn't have zinced he couldn't have zinced we couldn't have zinced you couldn't have zinced they couldn't have zinced	I couldn't have been zincing you couldn't have been zincing he couldn't have been zincing we couldn't have been zincing you couldn't have been zincing they couldn't have been zincing

Interrogative form

Simple form	V-ing form
could I zinc? could you zinc? could he zinc? could we zinc? could you zinc? could they zinc?	could I be zincing? could you be zincing? could he be zincing? could we be zincing? could you be zincing? could they be zincing?
Perfect	V-ing perfect
could I have zinced? could you have zinced? could he have zinced? could we have zinced? could you have zinced? could they have zinced?	could I have been zincing? could you have been zincing? could he have been zincing? could we have been zincing? could you have been zincing? could they have been zincing?

Interro-negative form

Simple form	V-ing form
couldn't I zinc? couldn't you zinc? couldn't he zinc? couldn't we zinc? couldn't you zinc? couldn't they zinc?	couldn't I be zincing? couldn't you be zincing? couldn't he be zincing? couldn't we be zincing? couldn't you be zincing? couldn't they be zincing?
Perfect	V-ing perfect
couldn't I have zinced? couldn't you have zinced? couldn't he have zinced? couldn't we have zinced? couldn't you have zinced? couldn't they have zinced?	couldn't I have been zincing? couldn't you have been zincing? couldn't he have been zincing? couldn't we have been zincing? couldn't you have been zincing? couldn't they have been zincing?