English verb conjugation
COULD METATHESIZE

Regular verb: metathesize - metathesized - metathesized

Affirmation

Simple form	V-ing form
I could metathesize you could metathesize he could metathesize we could metathesize you could metathesize they could metathesize	I could be metathesizing you could be metathesizing he could be metathesizing we could be metathesizing you could be metathesizing they could be metathesizing
Perfect	V-ing perfect
I could have metathesized you could have metathesized he could have metathesized we could have metathesized you could have metathesized they could have metathesized	I could have been metathesizing you could have been metathesizing he could have been metathesizing we could have been metathesizing you could have been metathesizing they could have been metathesizing

Negation

Simple form	V-ing form
I could not metathesize you could not metathesize he could not metathesize we could not metathesize you could not metathesize they could not metathesize	I could not be metathesizing you could not be metathesizing he could not be metathesizing we could not be metathesizing you could not be metathesizing they could not be metathesizing
Perfect	V-ing perfect
I could not have metathesized you could not have metathesized he could not have metathesized we could not have metathesized you could not have metathesized they could not have metathesized	I could not have been metathesizing you could not have been metathesizing he could not have been metathesizing we could not have been metathesizing you could not have been metathesizing they could not have been metathesizing

Interrogative form

Simple form	V-ing form
could I metathesize? could you metathesize? could he metathesize? could we metathesize? could you metathesize? could they metathesize?	could I be metathesizing? could you be metathesizing? could he be metathesizing? could we be metathesizing? could you be metathesizing? could they be metathesizing?
Perfect	V-ing perfect
could I have metathesized? could you have metathesized? could he have metathesized? could we have metathesized? could you have metathesized? could they have metathesized?	could I have been metathesizing? could you have been metathesizing? could he have been metathesizing? could we have been metathesizing? could you have been metathesizing? could they have been metathesizing?

Interro-negative form

Simple form	V-ing form
could I not metathesize? could you not metathesize? could he not metathesize? could we not metathesize? could you not metathesize? could they not metathesize?	could I not be metathesizing? could you not be metathesizing? could he not be metathesizing? could we not be metathesizing? could you not be metathesizing? could they not be metathesizing?
Perfect	V-ing perfect
could I not have metathesized? could you not have metathesized? could he not have metathesized? could we not have metathesized? could you not have metathesized? could they not have metathesized?	could I not have been metathesizing? could you not have been metathesizing? could he not have been metathesizing? could we not have been metathesizing? could you not have been metathesizing? could they not have been metathesizing?