English verb conjugation
COULD PEARL

Regular verb: pearl - pearled - pearled

Affirmation

Simple form	V-ing form
I could pearl you could pearl he could pearl we could pearl you could pearl they could pearl	I could be pearling you could be pearling he could be pearling we could be pearling you could be pearling they could be pearling
Perfect	V-ing perfect
I could have pearled you could have pearled he could have pearled we could have pearled you could have pearled they could have pearled	I could have been pearling you could have been pearling he could have been pearling we could have been pearling you could have been pearling they could have been pearling

Negation

Simple form	V-ing form
I could not pearl you could not pearl he could not pearl we could not pearl you could not pearl they could not pearl	I could not be pearling you could not be pearling he could not be pearling we could not be pearling you could not be pearling they could not be pearling
Perfect	V-ing perfect
I could not have pearled you could not have pearled he could not have pearled we could not have pearled you could not have pearled they could not have pearled	I could not have been pearling you could not have been pearling he could not have been pearling we could not have been pearling you could not have been pearling they could not have been pearling

Interrogative form

Simple form	V-ing form
could I pearl? could you pearl? could he pearl? could we pearl? could you pearl? could they pearl?	could I be pearling? could you be pearling? could he be pearling? could we be pearling? could you be pearling? could they be pearling?
Perfect	V-ing perfect
could I have pearled? could you have pearled? could he have pearled? could we have pearled? could you have pearled? could they have pearled?	could I have been pearling? could you have been pearling? could he have been pearling? could we have been pearling? could you have been pearling? could they have been pearling?

Interro-negative form

Simple form	V-ing form
could I not pearl? could you not pearl? could he not pearl? could we not pearl? could you not pearl? could they not pearl?	could I not be pearling? could you not be pearling? could he not be pearling? could we not be pearling? could you not be pearling? could they not be pearling?
Perfect	V-ing perfect
could I not have pearled? could you not have pearled? could he not have pearled? could we not have pearled? could you not have pearled? could they not have pearled?	could I not have been pearling? could you not have been pearling? could he not have been pearling? could we not have been pearling? could you not have been pearling? could they not have been pearling?