I could incise you could incise he could incise we could incise you could incise they could incise
V-ing form
I could be incising you could be incising he could be incising we could be incising you could be incising they could be incising
Perfect
I could have incised you could have incised he could have incised we could have incised you could have incised they could have incised
V-ing perfect
I could have been incising you could have been incising he could have been incising we could have been incising you could have been incising they could have been incising
Negation
Simple form
I could not incise you could not incise he could not incise we could not incise you could not incise they could not incise
V-ing form
I could not be incising you could not be incising he could not be incising we could not be incising you could not be incising they could not be incising
Perfect
I could not have incised you could not have incised he could not have incised we could not have incised you could not have incised they could not have incised
V-ing perfect
I could not have been incising you could not have been incising he could not have been incising we could not have been incising you could not have been incising they could not have been incising
Interrogative form
Simple form
could I incise? could you incise? could he incise? could we incise? could you incise? could they incise?
V-ing form
could I be incising? could you be incising? could he be incising? could we be incising? could you be incising? could they be incising?
Perfect
could I have incised? could you have incised? could he have incised? could we have incised? could you have incised? could they have incised?
V-ing perfect
could I have been incising? could you have been incising? could he have been incising? could we have been incising? could you have been incising? could they have been incising?
Interro-negative form
Simple form
could I not incise? could you not incise? could he not incise? could we not incise? could you not incise? could they not incise?
V-ing form
could I not be incising? could you not be incising? could he not be incising? could we not be incising? could you not be incising? could they not be incising?
Perfect
could I not have incised? could you not have incised? could he not have incised? could we not have incised? could you not have incised? could they not have incised?
V-ing perfect
could I not have been incising? could you not have been incising? could he not have been incising? could we not have been incising? could you not have been incising? could they not have been incising?