English verb conjugation
COULD DEMINERALISE

Regular verb: demineralise - demineralised - demineralised

Affirmation

Simple form	V-ing form
I could demineralise you could demineralise she could demineralise we could demineralise you could demineralise they could demineralise	I could be demineralising you could be demineralising she could be demineralising we could be demineralising you could be demineralising they could be demineralising
Perfect	V-ing perfect
I could have demineralised you could have demineralised she could have demineralised we could have demineralised you could have demineralised they could have demineralised	I could have been demineralising you could have been demineralising she could have been demineralising we could have been demineralising you could have been demineralising they could have been demineralising

Negation

Simple form	V-ing form
I couldn't demineralise you couldn't demineralise she couldn't demineralise we couldn't demineralise you couldn't demineralise they couldn't demineralise	I couldn't be demineralising you couldn't be demineralising she couldn't be demineralising we couldn't be demineralising you couldn't be demineralising they couldn't be demineralising
Perfect	V-ing perfect
I couldn't have demineralised you couldn't have demineralised she couldn't have demineralised we couldn't have demineralised you couldn't have demineralised they couldn't have demineralised	I couldn't have been demineralising you couldn't have been demineralising she couldn't have been demineralising we couldn't have been demineralising you couldn't have been demineralising they couldn't have been demineralising

Interrogative form

Simple form	V-ing form
could I demineralise? could you demineralise? could she demineralise? could we demineralise? could you demineralise? could they demineralise?	could I be demineralising? could you be demineralising? could she be demineralising? could we be demineralising? could you be demineralising? could they be demineralising?
Perfect	V-ing perfect
could I have demineralised? could you have demineralised? could she have demineralised? could we have demineralised? could you have demineralised? could they have demineralised?	could I have been demineralising? could you have been demineralising? could she have been demineralising? could we have been demineralising? could you have been demineralising? could they have been demineralising?

Interro-negative form

Simple form	V-ing form
couldn't I demineralise? couldn't you demineralise? couldn't she demineralise? couldn't we demineralise? couldn't you demineralise? couldn't they demineralise?	couldn't I be demineralising? couldn't you be demineralising? couldn't she be demineralising? couldn't we be demineralising? couldn't you be demineralising? couldn't they be demineralising?
Perfect	V-ing perfect
couldn't I have demineralised? couldn't you have demineralised? couldn't she have demineralised? couldn't we have demineralised? couldn't you have demineralised? couldn't they have demineralised?	couldn't I have been demineralising? couldn't you have been demineralising? couldn't she have been demineralising? couldn't we have been demineralising? couldn't you have been demineralising? couldn't they have been demineralising?