English verb conjugation
COULD DEMIST

Regular verb: demist - demisted - demisted

Affirmation

Simple form	V-ing form
I could demist you could demist he could demist we could demist you could demist they could demist	I could be demisting you could be demisting he could be demisting we could be demisting you could be demisting they could be demisting
Perfect	V-ing perfect
I could have demisted you could have demisted he could have demisted we could have demisted you could have demisted they could have demisted	I could have been demisting you could have been demisting he could have been demisting we could have been demisting you could have been demisting they could have been demisting

Negation

Simple form	V-ing form
I couldn't demist you couldn't demist he couldn't demist we couldn't demist you couldn't demist they couldn't demist	I couldn't be demisting you couldn't be demisting he couldn't be demisting we couldn't be demisting you couldn't be demisting they couldn't be demisting
Perfect	V-ing perfect
I couldn't have demisted you couldn't have demisted he couldn't have demisted we couldn't have demisted you couldn't have demisted they couldn't have demisted	I couldn't have been demisting you couldn't have been demisting he couldn't have been demisting we couldn't have been demisting you couldn't have been demisting they couldn't have been demisting

Interrogative form

Simple form	V-ing form
could I demist? could you demist? could he demist? could we demist? could you demist? could they demist?	could I be demisting? could you be demisting? could he be demisting? could we be demisting? could you be demisting? could they be demisting?
Perfect	V-ing perfect
could I have demisted? could you have demisted? could he have demisted? could we have demisted? could you have demisted? could they have demisted?	could I have been demisting? could you have been demisting? could he have been demisting? could we have been demisting? could you have been demisting? could they have been demisting?

Interro-negative form

Simple form	V-ing form
couldn't I demist? couldn't you demist? couldn't he demist? couldn't we demist? couldn't you demist? couldn't they demist?	couldn't I be demisting? couldn't you be demisting? couldn't he be demisting? couldn't we be demisting? couldn't you be demisting? couldn't they be demisting?
Perfect	V-ing perfect
couldn't I have demisted? couldn't you have demisted? couldn't he have demisted? couldn't we have demisted? couldn't you have demisted? couldn't they have demisted?	couldn't I have been demisting? couldn't you have been demisting? couldn't he have been demisting? couldn't we have been demisting? couldn't you have been demisting? couldn't they have been demisting?