I can apologise you can apologise he can apologise we can apologise you can apologise they can apologise
V-ing form
I can be apologising you can be apologising he can be apologising we can be apologising you can be apologising they can be apologising
Perfect
I can have apologised you can have apologised he can have apologised we can have apologised you can have apologised they can have apologised
V-ing perfect
I can have been apologising you can have been apologising he can have been apologising we can have been apologising you can have been apologising they can have been apologising
Negation
Simple form
I can't apologise you can't apologise he can't apologise we can't apologise you can't apologise they can't apologise
V-ing form
I can't be apologising you can't be apologising he can't be apologising we can't be apologising you can't be apologising they can't be apologising
Perfect
I can't have apologised you can't have apologised he can't have apologised we can't have apologised you can't have apologised they can't have apologised
V-ing perfect
I can't have been apologising you can't have been apologising he can't have been apologising we can't have been apologising you can't have been apologising they can't have been apologising
Interrogative form
Simple form
can I apologise? can you apologise? can he apologise? can we apologise? can you apologise? can they apologise?
V-ing form
can I be apologising? can you be apologising? can he be apologising? can we be apologising? can you be apologising? can they be apologising?
Perfect
can I have apologised? can you have apologised? can he have apologised? can we have apologised? can you have apologised? can they have apologised?
V-ing perfect
can I have been apologising? can you have been apologising? can he have been apologising? can we have been apologising? can you have been apologising? can they have been apologising?
Interro-negative form
Simple form
can't I apologise? can't you apologise? can't he apologise? can't we apologise? can't you apologise? can't they apologise?
V-ing form
can't I be apologising? can't you be apologising? can't he be apologising? can't we be apologising? can't you be apologising? can't they be apologising?
Perfect
can't I have apologised? can't you have apologised? can't he have apologised? can't we have apologised? can't you have apologised? can't they have apologised?
V-ing perfect
can't I have been apologising? can't you have been apologising? can't he have been apologising? can't we have been apologising? can't you have been apologising? can't they have been apologising?