English verb conjugation
COULD PLOT

Regular verb: plot - plotted - plotted

Affirmation

Simple form	V-ing form
I could plot you could plot he could plot we could plot you could plot they could plot	I could be plotting you could be plotting he could be plotting we could be plotting you could be plotting they could be plotting
Perfect	V-ing perfect
I could have plotted you could have plotted he could have plotted we could have plotted you could have plotted they could have plotted	I could have been plotting you could have been plotting he could have been plotting we could have been plotting you could have been plotting they could have been plotting

Negation

Simple form	V-ing form
I could not plot you could not plot he could not plot we could not plot you could not plot they could not plot	I could not be plotting you could not be plotting he could not be plotting we could not be plotting you could not be plotting they could not be plotting
Perfect	V-ing perfect
I could not have plotted you could not have plotted he could not have plotted we could not have plotted you could not have plotted they could not have plotted	I could not have been plotting you could not have been plotting he could not have been plotting we could not have been plotting you could not have been plotting they could not have been plotting

Interrogative form

Simple form	V-ing form
could I plot? could you plot? could he plot? could we plot? could you plot? could they plot?	could I be plotting? could you be plotting? could he be plotting? could we be plotting? could you be plotting? could they be plotting?
Perfect	V-ing perfect
could I have plotted? could you have plotted? could he have plotted? could we have plotted? could you have plotted? could they have plotted?	could I have been plotting? could you have been plotting? could he have been plotting? could we have been plotting? could you have been plotting? could they have been plotting?

Interro-negative form

Simple form	V-ing form
could I not plot? could you not plot? could he not plot? could we not plot? could you not plot? could they not plot?	could I not be plotting? could you not be plotting? could he not be plotting? could we not be plotting? could you not be plotting? could they not be plotting?
Perfect	V-ing perfect
could I not have plotted? could you not have plotted? could he not have plotted? could we not have plotted? could you not have plotted? could they not have plotted?	could I not have been plotting? could you not have been plotting? could he not have been plotting? could we not have been plotting? could you not have been plotting? could they not have been plotting?