English verb conjugation
COULD SEXTUPLE

Regular verb: sextuple - sextupled - sextupled

Affirmation

Simple form	V-ing form
I could sextuple you could sextuple he could sextuple we could sextuple you could sextuple they could sextuple	I could be sextupling you could be sextupling he could be sextupling we could be sextupling you could be sextupling they could be sextupling
Perfect	V-ing perfect
I could have sextupled you could have sextupled he could have sextupled we could have sextupled you could have sextupled they could have sextupled	I could have been sextupling you could have been sextupling he could have been sextupling we could have been sextupling you could have been sextupling they could have been sextupling

Negation

Simple form	V-ing form
I couldn't sextuple you couldn't sextuple he couldn't sextuple we couldn't sextuple you couldn't sextuple they couldn't sextuple	I couldn't be sextupling you couldn't be sextupling he couldn't be sextupling we couldn't be sextupling you couldn't be sextupling they couldn't be sextupling
Perfect	V-ing perfect
I couldn't have sextupled you couldn't have sextupled he couldn't have sextupled we couldn't have sextupled you couldn't have sextupled they couldn't have sextupled	I couldn't have been sextupling you couldn't have been sextupling he couldn't have been sextupling we couldn't have been sextupling you couldn't have been sextupling they couldn't have been sextupling

Interrogative form

Simple form	V-ing form
could I sextuple? could you sextuple? could he sextuple? could we sextuple? could you sextuple? could they sextuple?	could I be sextupling? could you be sextupling? could he be sextupling? could we be sextupling? could you be sextupling? could they be sextupling?
Perfect	V-ing perfect
could I have sextupled? could you have sextupled? could he have sextupled? could we have sextupled? could you have sextupled? could they have sextupled?	could I have been sextupling? could you have been sextupling? could he have been sextupling? could we have been sextupling? could you have been sextupling? could they have been sextupling?

Interro-negative form

Simple form	V-ing form
couldn't I sextuple? couldn't you sextuple? couldn't he sextuple? couldn't we sextuple? couldn't you sextuple? couldn't they sextuple?	couldn't I be sextupling? couldn't you be sextupling? couldn't he be sextupling? couldn't we be sextupling? couldn't you be sextupling? couldn't they be sextupling?
Perfect	V-ing perfect
couldn't I have sextupled? couldn't you have sextupled? couldn't he have sextupled? couldn't we have sextupled? couldn't you have sextupled? couldn't they have sextupled?	couldn't I have been sextupling? couldn't you have been sextupling? couldn't he have been sextupling? couldn't we have been sextupling? couldn't you have been sextupling? couldn't they have been sextupling?