English verb conjugation
COULD DEMISE

Regular verb: demise - demised - demised

Affirmation

Simple form	V-ing form
I could demise you could demise he could demise we could demise you could demise they could demise	I could be demising you could be demising he could be demising we could be demising you could be demising they could be demising
Perfect	V-ing perfect
I could have demised you could have demised he could have demised we could have demised you could have demised they could have demised	I could have been demising you could have been demising he could have been demising we could have been demising you could have been demising they could have been demising

Negation

Simple form	V-ing form
I couldn't demise you couldn't demise he couldn't demise we couldn't demise you couldn't demise they couldn't demise	I couldn't be demising you couldn't be demising he couldn't be demising we couldn't be demising you couldn't be demising they couldn't be demising
Perfect	V-ing perfect
I couldn't have demised you couldn't have demised he couldn't have demised we couldn't have demised you couldn't have demised they couldn't have demised	I couldn't have been demising you couldn't have been demising he couldn't have been demising we couldn't have been demising you couldn't have been demising they couldn't have been demising

Interrogative form

Simple form	V-ing form
could I demise? could you demise? could he demise? could we demise? could you demise? could they demise?	could I be demising? could you be demising? could he be demising? could we be demising? could you be demising? could they be demising?
Perfect	V-ing perfect
could I have demised? could you have demised? could he have demised? could we have demised? could you have demised? could they have demised?	could I have been demising? could you have been demising? could he have been demising? could we have been demising? could you have been demising? could they have been demising?

Interro-negative form

Simple form	V-ing form
couldn't I demise? couldn't you demise? couldn't he demise? couldn't we demise? couldn't you demise? couldn't they demise?	couldn't I be demising? couldn't you be demising? couldn't he be demising? couldn't we be demising? couldn't you be demising? couldn't they be demising?
Perfect	V-ing perfect
couldn't I have demised? couldn't you have demised? couldn't he have demised? couldn't we have demised? couldn't you have demised? couldn't they have demised?	couldn't I have been demising? couldn't you have been demising? couldn't he have been demising? couldn't we have been demising? couldn't you have been demising? couldn't they have been demising?