English verb conjugation
COULD FLUX

Regular verb: flux - fluxed - fluxed

Affirmation

Simple form	V-ing form
I could flux you could flux he could flux we could flux you could flux they could flux	I could be fluxing you could be fluxing he could be fluxing we could be fluxing you could be fluxing they could be fluxing
Perfect	V-ing perfect
I could have fluxed you could have fluxed he could have fluxed we could have fluxed you could have fluxed they could have fluxed	I could have been fluxing you could have been fluxing he could have been fluxing we could have been fluxing you could have been fluxing they could have been fluxing

Negation

Simple form	V-ing form
I couldn't flux you couldn't flux he couldn't flux we couldn't flux you couldn't flux they couldn't flux	I couldn't be fluxing you couldn't be fluxing he couldn't be fluxing we couldn't be fluxing you couldn't be fluxing they couldn't be fluxing
Perfect	V-ing perfect
I couldn't have fluxed you couldn't have fluxed he couldn't have fluxed we couldn't have fluxed you couldn't have fluxed they couldn't have fluxed	I couldn't have been fluxing you couldn't have been fluxing he couldn't have been fluxing we couldn't have been fluxing you couldn't have been fluxing they couldn't have been fluxing

Interrogative form

Simple form	V-ing form
could I flux? could you flux? could he flux? could we flux? could you flux? could they flux?	could I be fluxing? could you be fluxing? could he be fluxing? could we be fluxing? could you be fluxing? could they be fluxing?
Perfect	V-ing perfect
could I have fluxed? could you have fluxed? could he have fluxed? could we have fluxed? could you have fluxed? could they have fluxed?	could I have been fluxing? could you have been fluxing? could he have been fluxing? could we have been fluxing? could you have been fluxing? could they have been fluxing?

Interro-negative form

Simple form	V-ing form
couldn't I flux? couldn't you flux? couldn't he flux? couldn't we flux? couldn't you flux? couldn't they flux?	couldn't I be fluxing? couldn't you be fluxing? couldn't he be fluxing? couldn't we be fluxing? couldn't you be fluxing? couldn't they be fluxing?
Perfect	V-ing perfect
couldn't I have fluxed? couldn't you have fluxed? couldn't he have fluxed? couldn't we have fluxed? couldn't you have fluxed? couldn't they have fluxed?	couldn't I have been fluxing? couldn't you have been fluxing? couldn't he have been fluxing? couldn't we have been fluxing? couldn't you have been fluxing? couldn't they have been fluxing?