English verb conjugation
COULD PILLAR

Regular verb: pillar - pillared - pillared

Affirmation

Simple form	V-ing form
I could pillar you could pillar he could pillar we could pillar you could pillar they could pillar	I could be pillaring you could be pillaring he could be pillaring we could be pillaring you could be pillaring they could be pillaring
Perfect	V-ing perfect
I could have pillared you could have pillared he could have pillared we could have pillared you could have pillared they could have pillared	I could have been pillaring you could have been pillaring he could have been pillaring we could have been pillaring you could have been pillaring they could have been pillaring

Negation

Simple form	V-ing form
I could not pillar you could not pillar he could not pillar we could not pillar you could not pillar they could not pillar	I could not be pillaring you could not be pillaring he could not be pillaring we could not be pillaring you could not be pillaring they could not be pillaring
Perfect	V-ing perfect
I could not have pillared you could not have pillared he could not have pillared we could not have pillared you could not have pillared they could not have pillared	I could not have been pillaring you could not have been pillaring he could not have been pillaring we could not have been pillaring you could not have been pillaring they could not have been pillaring

Interrogative form

Simple form	V-ing form
could I pillar? could you pillar? could he pillar? could we pillar? could you pillar? could they pillar?	could I be pillaring? could you be pillaring? could he be pillaring? could we be pillaring? could you be pillaring? could they be pillaring?
Perfect	V-ing perfect
could I have pillared? could you have pillared? could he have pillared? could we have pillared? could you have pillared? could they have pillared?	could I have been pillaring? could you have been pillaring? could he have been pillaring? could we have been pillaring? could you have been pillaring? could they have been pillaring?

Interro-negative form

Simple form	V-ing form
could I not pillar? could you not pillar? could he not pillar? could we not pillar? could you not pillar? could they not pillar?	could I not be pillaring? could you not be pillaring? could he not be pillaring? could we not be pillaring? could you not be pillaring? could they not be pillaring?
Perfect	V-ing perfect
could I not have pillared? could you not have pillared? could he not have pillared? could we not have pillared? could you not have pillared? could they not have pillared?	could I not have been pillaring? could you not have been pillaring? could he not have been pillaring? could we not have been pillaring? could you not have been pillaring? could they not have been pillaring?