English verb conjugation
COULD PHOTOENGRAVE

Regular verb: photoengrave - photoengraved - photoengraved

Affirmation

Simple form	V-ing form
I could photoengrave you could photoengrave he could photoengrave we could photoengrave you could photoengrave they could photoengrave	I could be photoengraving you could be photoengraving he could be photoengraving we could be photoengraving you could be photoengraving they could be photoengraving
Perfect	V-ing perfect
I could have photoengraved you could have photoengraved he could have photoengraved we could have photoengraved you could have photoengraved they could have photoengraved	I could have been photoengraving you could have been photoengraving he could have been photoengraving we could have been photoengraving you could have been photoengraving they could have been photoengraving

Negation

Simple form	V-ing form
I could not photoengrave you could not photoengrave he could not photoengrave we could not photoengrave you could not photoengrave they could not photoengrave	I could not be photoengraving you could not be photoengraving he could not be photoengraving we could not be photoengraving you could not be photoengraving they could not be photoengraving
Perfect	V-ing perfect
I could not have photoengraved you could not have photoengraved he could not have photoengraved we could not have photoengraved you could not have photoengraved they could not have photoengraved	I could not have been photoengraving you could not have been photoengraving he could not have been photoengraving we could not have been photoengraving you could not have been photoengraving they could not have been photoengraving

Interrogative form

Simple form	V-ing form
could I photoengrave? could you photoengrave? could he photoengrave? could we photoengrave? could you photoengrave? could they photoengrave?	could I be photoengraving? could you be photoengraving? could he be photoengraving? could we be photoengraving? could you be photoengraving? could they be photoengraving?
Perfect	V-ing perfect
could I have photoengraved? could you have photoengraved? could he have photoengraved? could we have photoengraved? could you have photoengraved? could they have photoengraved?	could I have been photoengraving? could you have been photoengraving? could he have been photoengraving? could we have been photoengraving? could you have been photoengraving? could they have been photoengraving?

Interro-negative form

Simple form	V-ing form
could I not photoengrave? could you not photoengrave? could he not photoengrave? could we not photoengrave? could you not photoengrave? could they not photoengrave?	could I not be photoengraving? could you not be photoengraving? could he not be photoengraving? could we not be photoengraving? could you not be photoengraving? could they not be photoengraving?
Perfect	V-ing perfect
could I not have photoengraved? could you not have photoengraved? could he not have photoengraved? could we not have photoengraved? could you not have photoengraved? could they not have photoengraved?	could I not have been photoengraving? could you not have been photoengraving? could he not have been photoengraving? could we not have been photoengraving? could you not have been photoengraving? could they not have been photoengraving?