I could memorialise you could memorialise she could memorialise we could memorialise you could memorialise they could memorialise
V-ing form
I could be memorialising you could be memorialising she could be memorialising we could be memorialising you could be memorialising they could be memorialising
Perfect
I could have memorialised you could have memorialised she could have memorialised we could have memorialised you could have memorialised they could have memorialised
V-ing perfect
I could have been memorialising you could have been memorialising she could have been memorialising we could have been memorialising you could have been memorialising they could have been memorialising
Negation
Simple form
I could not memorialise you could not memorialise she could not memorialise we could not memorialise you could not memorialise they could not memorialise
V-ing form
I could not be memorialising you could not be memorialising she could not be memorialising we could not be memorialising you could not be memorialising they could not be memorialising
Perfect
I could not have memorialised you could not have memorialised she could not have memorialised we could not have memorialised you could not have memorialised they could not have memorialised
V-ing perfect
I could not have been memorialising you could not have been memorialising she could not have been memorialising we could not have been memorialising you could not have been memorialising they could not have been memorialising
Interrogative form
Simple form
could I memorialise? could you memorialise? could she memorialise? could we memorialise? could you memorialise? could they memorialise?
V-ing form
could I be memorialising? could you be memorialising? could she be memorialising? could we be memorialising? could you be memorialising? could they be memorialising?
Perfect
could I have memorialised? could you have memorialised? could she have memorialised? could we have memorialised? could you have memorialised? could they have memorialised?
V-ing perfect
could I have been memorialising? could you have been memorialising? could she have been memorialising? could we have been memorialising? could you have been memorialising? could they have been memorialising?
Interro-negative form
Simple form
could I not memorialise? could you not memorialise? could she not memorialise? could we not memorialise? could you not memorialise? could they not memorialise?
V-ing form
could I not be memorialising? could you not be memorialising? could she not be memorialising? could we not be memorialising? could you not be memorialising? could they not be memorialising?
Perfect
could I not have memorialised? could you not have memorialised? could she not have memorialised? could we not have memorialised? could you not have memorialised? could they not have memorialised?
V-ing perfect
could I not have been memorialising? could you not have been memorialising? could she not have been memorialising? could we not have been memorialising? could you not have been memorialising? could they not have been memorialising?