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 couldn't pearl you couldn't pearl he couldn't pearl we couldn't pearl you couldn't pearl they couldn't pearl	I couldn't be pearling you couldn't be pearling he couldn't be pearling we couldn't be pearling you couldn't be pearling they couldn't be pearling
Perfect	V-ing perfect
I couldn't have pearled you couldn't have pearled he couldn't have pearled we couldn't have pearled you couldn't have pearled they couldn't have pearled	I couldn't have been pearling you couldn't have been pearling he couldn't have been pearling we couldn't have been pearling you couldn't have been pearling they couldn't 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
couldn't I pearl? couldn't you pearl? couldn't he pearl? couldn't we pearl? couldn't you pearl? couldn't they pearl?	couldn't I be pearling? couldn't you be pearling? couldn't he be pearling? couldn't we be pearling? couldn't you be pearling? couldn't they be pearling?
Perfect	V-ing perfect
couldn't I have pearled? couldn't you have pearled? couldn't he have pearled? couldn't we have pearled? couldn't you have pearled? couldn't they have pearled?	couldn't I have been pearling? couldn't you have been pearling? couldn't he have been pearling? couldn't we have been pearling? couldn't you have been pearling? couldn't they have been pearling?