English verb conjugation
COULD BITUMINISE

Regular verb: bituminise - bituminised - bituminised

Affirmation

Simple form	V-ing form
I could bituminise you could bituminise she could bituminise we could bituminise you could bituminise they could bituminise	I could be bituminising you could be bituminising she could be bituminising we could be bituminising you could be bituminising they could be bituminising
Perfect	V-ing perfect
I could have bituminised you could have bituminised she could have bituminised we could have bituminised you could have bituminised they could have bituminised	I could have been bituminising you could have been bituminising she could have been bituminising we could have been bituminising you could have been bituminising they could have been bituminising

Negation

Simple form	V-ing form
I couldn't bituminise you couldn't bituminise she couldn't bituminise we couldn't bituminise you couldn't bituminise they couldn't bituminise	I couldn't be bituminising you couldn't be bituminising she couldn't be bituminising we couldn't be bituminising you couldn't be bituminising they couldn't be bituminising
Perfect	V-ing perfect
I couldn't have bituminised you couldn't have bituminised she couldn't have bituminised we couldn't have bituminised you couldn't have bituminised they couldn't have bituminised	I couldn't have been bituminising you couldn't have been bituminising she couldn't have been bituminising we couldn't have been bituminising you couldn't have been bituminising they couldn't have been bituminising

Interrogative form

Simple form	V-ing form
could I bituminise? could you bituminise? could she bituminise? could we bituminise? could you bituminise? could they bituminise?	could I be bituminising? could you be bituminising? could she be bituminising? could we be bituminising? could you be bituminising? could they be bituminising?
Perfect	V-ing perfect
could I have bituminised? could you have bituminised? could she have bituminised? could we have bituminised? could you have bituminised? could they have bituminised?	could I have been bituminising? could you have been bituminising? could she have been bituminising? could we have been bituminising? could you have been bituminising? could they have been bituminising?

Interro-negative form

Simple form	V-ing form
couldn't I bituminise? couldn't you bituminise? couldn't she bituminise? couldn't we bituminise? couldn't you bituminise? couldn't they bituminise?	couldn't I be bituminising? couldn't you be bituminising? couldn't she be bituminising? couldn't we be bituminising? couldn't you be bituminising? couldn't they be bituminising?
Perfect	V-ing perfect
couldn't I have bituminised? couldn't you have bituminised? couldn't she have bituminised? couldn't we have bituminised? couldn't you have bituminised? couldn't they have bituminised?	couldn't I have been bituminising? couldn't you have been bituminising? couldn't she have been bituminising? couldn't we have been bituminising? couldn't you have been bituminising? couldn't they have been bituminising?