English verb conjugation
COULD VULGARISE

Regular verb: vulgarise - vulgarised - vulgarised

Affirmation

Simple form	V-ing form
I could vulgarise you could vulgarise he could vulgarise we could vulgarise you could vulgarise they could vulgarise	I could be vulgarising you could be vulgarising he could be vulgarising we could be vulgarising you could be vulgarising they could be vulgarising
Perfect	V-ing perfect
I could have vulgarised you could have vulgarised he could have vulgarised we could have vulgarised you could have vulgarised they could have vulgarised	I could have been vulgarising you could have been vulgarising he could have been vulgarising we could have been vulgarising you could have been vulgarising they could have been vulgarising

Negation

Simple form	V-ing form
I couldn't vulgarise you couldn't vulgarise he couldn't vulgarise we couldn't vulgarise you couldn't vulgarise they couldn't vulgarise	I couldn't be vulgarising you couldn't be vulgarising he couldn't be vulgarising we couldn't be vulgarising you couldn't be vulgarising they couldn't be vulgarising
Perfect	V-ing perfect
I couldn't have vulgarised you couldn't have vulgarised he couldn't have vulgarised we couldn't have vulgarised you couldn't have vulgarised they couldn't have vulgarised	I couldn't have been vulgarising you couldn't have been vulgarising he couldn't have been vulgarising we couldn't have been vulgarising you couldn't have been vulgarising they couldn't have been vulgarising

Interrogative form

Simple form	V-ing form
could I vulgarise? could you vulgarise? could he vulgarise? could we vulgarise? could you vulgarise? could they vulgarise?	could I be vulgarising? could you be vulgarising? could he be vulgarising? could we be vulgarising? could you be vulgarising? could they be vulgarising?
Perfect	V-ing perfect
could I have vulgarised? could you have vulgarised? could he have vulgarised? could we have vulgarised? could you have vulgarised? could they have vulgarised?	could I have been vulgarising? could you have been vulgarising? could he have been vulgarising? could we have been vulgarising? could you have been vulgarising? could they have been vulgarising?

Interro-negative form

Simple form	V-ing form
couldn't I vulgarise? couldn't you vulgarise? couldn't he vulgarise? couldn't we vulgarise? couldn't you vulgarise? couldn't they vulgarise?	couldn't I be vulgarising? couldn't you be vulgarising? couldn't he be vulgarising? couldn't we be vulgarising? couldn't you be vulgarising? couldn't they be vulgarising?
Perfect	V-ing perfect
couldn't I have vulgarised? couldn't you have vulgarised? couldn't he have vulgarised? couldn't we have vulgarised? couldn't you have vulgarised? couldn't they have vulgarised?	couldn't I have been vulgarising? couldn't you have been vulgarising? couldn't he have been vulgarising? couldn't we have been vulgarising? couldn't you have been vulgarising? couldn't they have been vulgarising?