English verb conjugation
COULD PESTLE

Regular verb: pestle - pestled - pestled

Affirmation

Simple form	V-ing form
I could pestle you could pestle he could pestle we could pestle you could pestle they could pestle	I could be pestling you could be pestling he could be pestling we could be pestling you could be pestling they could be pestling
Perfect	V-ing perfect
I could have pestled you could have pestled he could have pestled we could have pestled you could have pestled they could have pestled	I could have been pestling you could have been pestling he could have been pestling we could have been pestling you could have been pestling they could have been pestling

Negation

Simple form	V-ing form
I couldn't pestle you couldn't pestle he couldn't pestle we couldn't pestle you couldn't pestle they couldn't pestle	I couldn't be pestling you couldn't be pestling he couldn't be pestling we couldn't be pestling you couldn't be pestling they couldn't be pestling
Perfect	V-ing perfect
I couldn't have pestled you couldn't have pestled he couldn't have pestled we couldn't have pestled you couldn't have pestled they couldn't have pestled	I couldn't have been pestling you couldn't have been pestling he couldn't have been pestling we couldn't have been pestling you couldn't have been pestling they couldn't have been pestling

Interrogative form

Simple form	V-ing form
could I pestle? could you pestle? could he pestle? could we pestle? could you pestle? could they pestle?	could I be pestling? could you be pestling? could he be pestling? could we be pestling? could you be pestling? could they be pestling?
Perfect	V-ing perfect
could I have pestled? could you have pestled? could he have pestled? could we have pestled? could you have pestled? could they have pestled?	could I have been pestling? could you have been pestling? could he have been pestling? could we have been pestling? could you have been pestling? could they have been pestling?

Interro-negative form

Simple form	V-ing form
couldn't I pestle? couldn't you pestle? couldn't he pestle? couldn't we pestle? couldn't you pestle? couldn't they pestle?	couldn't I be pestling? couldn't you be pestling? couldn't he be pestling? couldn't we be pestling? couldn't you be pestling? couldn't they be pestling?
Perfect	V-ing perfect
couldn't I have pestled? couldn't you have pestled? couldn't he have pestled? couldn't we have pestled? couldn't you have pestled? couldn't they have pestled?	couldn't I have been pestling? couldn't you have been pestling? couldn't he have been pestling? couldn't we have been pestling? couldn't you have been pestling? couldn't they have been pestling?