I could tantanlise you could tantanlise she could tantanlise we could tantanlise you could tantanlise they could tantanlise
V-ing form
I could be tantanlising you could be tantanlising she could be tantanlising we could be tantanlising you could be tantanlising they could be tantanlising
Perfect
I could have tantanlised you could have tantanlised she could have tantanlised we could have tantanlised you could have tantanlised they could have tantanlised
V-ing perfect
I could have been tantanlising you could have been tantanlising she could have been tantanlising we could have been tantanlising you could have been tantanlising they could have been tantanlising
Negation
Simple form
I couldn't tantanlise you couldn't tantanlise she couldn't tantanlise we couldn't tantanlise you couldn't tantanlise they couldn't tantanlise
V-ing form
I couldn't be tantanlising you couldn't be tantanlising she couldn't be tantanlising we couldn't be tantanlising you couldn't be tantanlising they couldn't be tantanlising
Perfect
I couldn't have tantanlised you couldn't have tantanlised she couldn't have tantanlised we couldn't have tantanlised you couldn't have tantanlised they couldn't have tantanlised
V-ing perfect
I couldn't have been tantanlising you couldn't have been tantanlising she couldn't have been tantanlising we couldn't have been tantanlising you couldn't have been tantanlising they couldn't have been tantanlising
Interrogative form
Simple form
could I tantanlise? could you tantanlise? could she tantanlise? could we tantanlise? could you tantanlise? could they tantanlise?
V-ing form
could I be tantanlising? could you be tantanlising? could she be tantanlising? could we be tantanlising? could you be tantanlising? could they be tantanlising?
Perfect
could I have tantanlised? could you have tantanlised? could she have tantanlised? could we have tantanlised? could you have tantanlised? could they have tantanlised?
V-ing perfect
could I have been tantanlising? could you have been tantanlising? could she have been tantanlising? could we have been tantanlising? could you have been tantanlising? could they have been tantanlising?
Interro-negative form
Simple form
couldn't I tantanlise? couldn't you tantanlise? couldn't she tantanlise? couldn't we tantanlise? couldn't you tantanlise? couldn't they tantanlise?
V-ing form
couldn't I be tantanlising? couldn't you be tantanlising? couldn't she be tantanlising? couldn't we be tantanlising? couldn't you be tantanlising? couldn't they be tantanlising?
Perfect
couldn't I have tantanlised? couldn't you have tantanlised? couldn't she have tantanlised? couldn't we have tantanlised? couldn't you have tantanlised? couldn't they have tantanlised?
V-ing perfect
couldn't I have been tantanlising? couldn't you have been tantanlising? couldn't she have been tantanlising? couldn't we have been tantanlising? couldn't you have been tantanlising? couldn't they have been tantanlising?