I could abscise you could abscise she could abscise we could abscise you could abscise they could abscise
V-ing form
I could be abscising you could be abscising she could be abscising we could be abscising you could be abscising they could be abscising
Perfect
I could have abscised you could have abscised she could have abscised we could have abscised you could have abscised they could have abscised
V-ing perfect
I could have been abscising you could have been abscising she could have been abscising we could have been abscising you could have been abscising they could have been abscising
Negation
Simple form
I could not abscise you could not abscise she could not abscise we could not abscise you could not abscise they could not abscise
V-ing form
I could not be abscising you could not be abscising she could not be abscising we could not be abscising you could not be abscising they could not be abscising
Perfect
I could not have abscised you could not have abscised she could not have abscised we could not have abscised you could not have abscised they could not have abscised
V-ing perfect
I could not have been abscising you could not have been abscising she could not have been abscising we could not have been abscising you could not have been abscising they could not have been abscising
Interrogative form
Simple form
could I abscise? could you abscise? could she abscise? could we abscise? could you abscise? could they abscise?
V-ing form
could I be abscising? could you be abscising? could she be abscising? could we be abscising? could you be abscising? could they be abscising?
Perfect
could I have abscised? could you have abscised? could she have abscised? could we have abscised? could you have abscised? could they have abscised?
V-ing perfect
could I have been abscising? could you have been abscising? could she have been abscising? could we have been abscising? could you have been abscising? could they have been abscising?
Interro-negative form
Simple form
could I not abscise? could you not abscise? could she not abscise? could we not abscise? could you not abscise? could they not abscise?
V-ing form
could I not be abscising? could you not be abscising? could she not be abscising? could we not be abscising? could you not be abscising? could they not be abscising?
Perfect
could I not have abscised? could you not have abscised? could she not have abscised? could we not have abscised? could you not have abscised? could they not have abscised?
V-ing perfect
could I not have been abscising? could you not have been abscising? could she not have been abscising? could we not have been abscising? could you not have been abscising? could they not have been abscising?