I could bastardise you could bastardise she could bastardise we could bastardise you could bastardise they could bastardise
V-ing form
I could be bastardising you could be bastardising she could be bastardising we could be bastardising you could be bastardising they could be bastardising
Perfect
I could have bastardised you could have bastardised she could have bastardised we could have bastardised you could have bastardised they could have bastardised
V-ing perfect
I could have been bastardising you could have been bastardising she could have been bastardising we could have been bastardising you could have been bastardising they could have been bastardising
Negation
Simple form
I could not bastardise you could not bastardise she could not bastardise we could not bastardise you could not bastardise they could not bastardise
V-ing form
I could not be bastardising you could not be bastardising she could not be bastardising we could not be bastardising you could not be bastardising they could not be bastardising
Perfect
I could not have bastardised you could not have bastardised she could not have bastardised we could not have bastardised you could not have bastardised they could not have bastardised
V-ing perfect
I could not have been bastardising you could not have been bastardising she could not have been bastardising we could not have been bastardising you could not have been bastardising they could not have been bastardising
Interrogative form
Simple form
could I bastardise? could you bastardise? could she bastardise? could we bastardise? could you bastardise? could they bastardise?
V-ing form
could I be bastardising? could you be bastardising? could she be bastardising? could we be bastardising? could you be bastardising? could they be bastardising?
Perfect
could I have bastardised? could you have bastardised? could she have bastardised? could we have bastardised? could you have bastardised? could they have bastardised?
V-ing perfect
could I have been bastardising? could you have been bastardising? could she have been bastardising? could we have been bastardising? could you have been bastardising? could they have been bastardising?
Interro-negative form
Simple form
could I not bastardise? could you not bastardise? could she not bastardise? could we not bastardise? could you not bastardise? could they not bastardise?
V-ing form
could I not be bastardising? could you not be bastardising? could she not be bastardising? could we not be bastardising? could you not be bastardising? could they not be bastardising?
Perfect
could I not have bastardised? could you not have bastardised? could she not have bastardised? could we not have bastardised? could you not have bastardised? could they not have bastardised?
V-ing perfect
could I not have been bastardising? could you not have been bastardising? could she not have been bastardising? could we not have been bastardising? could you not have been bastardising? could they not have been bastardising?