English verb conjugation
COULD VAPORISE

Regular verb: vaporise - vaporised - vaporised

Affirmation

Simple form	V-ing form
I could vaporise you could vaporise she could vaporise we could vaporise you could vaporise they could vaporise	I could be vaporising you could be vaporising she could be vaporising we could be vaporising you could be vaporising they could be vaporising
Perfect	V-ing perfect
I could have vaporised you could have vaporised she could have vaporised we could have vaporised you could have vaporised they could have vaporised	I could have been vaporising you could have been vaporising she could have been vaporising we could have been vaporising you could have been vaporising they could have been vaporising

Negation

Simple form	V-ing form
I couldn't vaporise you couldn't vaporise she couldn't vaporise we couldn't vaporise you couldn't vaporise they couldn't vaporise	I couldn't be vaporising you couldn't be vaporising she couldn't be vaporising we couldn't be vaporising you couldn't be vaporising they couldn't be vaporising
Perfect	V-ing perfect
I couldn't have vaporised you couldn't have vaporised she couldn't have vaporised we couldn't have vaporised you couldn't have vaporised they couldn't have vaporised	I couldn't have been vaporising you couldn't have been vaporising she couldn't have been vaporising we couldn't have been vaporising you couldn't have been vaporising they couldn't have been vaporising

Interrogative form

Simple form	V-ing form
could I vaporise? could you vaporise? could she vaporise? could we vaporise? could you vaporise? could they vaporise?	could I be vaporising? could you be vaporising? could she be vaporising? could we be vaporising? could you be vaporising? could they be vaporising?
Perfect	V-ing perfect
could I have vaporised? could you have vaporised? could she have vaporised? could we have vaporised? could you have vaporised? could they have vaporised?	could I have been vaporising? could you have been vaporising? could she have been vaporising? could we have been vaporising? could you have been vaporising? could they have been vaporising?

Interro-negative form

Simple form	V-ing form
couldn't I vaporise? couldn't you vaporise? couldn't she vaporise? couldn't we vaporise? couldn't you vaporise? couldn't they vaporise?	couldn't I be vaporising? couldn't you be vaporising? couldn't she be vaporising? couldn't we be vaporising? couldn't you be vaporising? couldn't they be vaporising?
Perfect	V-ing perfect
couldn't I have vaporised? couldn't you have vaporised? couldn't she have vaporised? couldn't we have vaporised? couldn't you have vaporised? couldn't they have vaporised?	couldn't I have been vaporising? couldn't you have been vaporising? couldn't she have been vaporising? couldn't we have been vaporising? couldn't you have been vaporising? couldn't they have been vaporising?