English verb conjugation
COULD FOUNDER

Regular verb: founder - foundered - foundered

Affirmation

Simple form	V-ing form
I could founder you could founder he could founder we could founder you could founder they could founder	I could be foundering you could be foundering he could be foundering we could be foundering you could be foundering they could be foundering
Perfect	V-ing perfect
I could have foundered you could have foundered he could have foundered we could have foundered you could have foundered they could have foundered	I could have been foundering you could have been foundering he could have been foundering we could have been foundering you could have been foundering they could have been foundering

Negation

Simple form	V-ing form
I could not founder you could not founder he could not founder we could not founder you could not founder they could not founder	I could not be foundering you could not be foundering he could not be foundering we could not be foundering you could not be foundering they could not be foundering
Perfect	V-ing perfect
I could not have foundered you could not have foundered he could not have foundered we could not have foundered you could not have foundered they could not have foundered	I could not have been foundering you could not have been foundering he could not have been foundering we could not have been foundering you could not have been foundering they could not have been foundering

Interrogative form

Simple form	V-ing form
could I founder? could you founder? could he founder? could we founder? could you founder? could they founder?	could I be foundering? could you be foundering? could he be foundering? could we be foundering? could you be foundering? could they be foundering?
Perfect	V-ing perfect
could I have foundered? could you have foundered? could he have foundered? could we have foundered? could you have foundered? could they have foundered?	could I have been foundering? could you have been foundering? could he have been foundering? could we have been foundering? could you have been foundering? could they have been foundering?

Interro-negative form

Simple form	V-ing form
could I not founder? could you not founder? could he not founder? could we not founder? could you not founder? could they not founder?	could I not be foundering? could you not be foundering? could he not be foundering? could we not be foundering? could you not be foundering? could they not be foundering?
Perfect	V-ing perfect
could I not have foundered? could you not have foundered? could he not have foundered? could we not have foundered? could you not have foundered? could they not have foundered?	could I not have been foundering? could you not have been foundering? could he not have been foundering? could we not have been foundering? could you not have been foundering? could they not have been foundering?