I can alphabetise you can alphabetise he can alphabetise we can alphabetise you can alphabetise they can alphabetise
V-ing form
I can be alphabetising you can be alphabetising he can be alphabetising we can be alphabetising you can be alphabetising they can be alphabetising
Perfect
I can have alphabetised you can have alphabetised he can have alphabetised we can have alphabetised you can have alphabetised they can have alphabetised
V-ing perfect
I can have been alphabetising you can have been alphabetising he can have been alphabetising we can have been alphabetising you can have been alphabetising they can have been alphabetising
Negation
Simple form
I can't alphabetise you can't alphabetise he can't alphabetise we can't alphabetise you can't alphabetise they can't alphabetise
V-ing form
I can't be alphabetising you can't be alphabetising he can't be alphabetising we can't be alphabetising you can't be alphabetising they can't be alphabetising
Perfect
I can't have alphabetised you can't have alphabetised he can't have alphabetised we can't have alphabetised you can't have alphabetised they can't have alphabetised
V-ing perfect
I can't have been alphabetising you can't have been alphabetising he can't have been alphabetising we can't have been alphabetising you can't have been alphabetising they can't have been alphabetising
Interrogative form
Simple form
can I alphabetise? can you alphabetise? can he alphabetise? can we alphabetise? can you alphabetise? can they alphabetise?
V-ing form
can I be alphabetising? can you be alphabetising? can he be alphabetising? can we be alphabetising? can you be alphabetising? can they be alphabetising?
Perfect
can I have alphabetised? can you have alphabetised? can he have alphabetised? can we have alphabetised? can you have alphabetised? can they have alphabetised?
V-ing perfect
can I have been alphabetising? can you have been alphabetising? can he have been alphabetising? can we have been alphabetising? can you have been alphabetising? can they have been alphabetising?
Interro-negative form
Simple form
can't I alphabetise? can't you alphabetise? can't he alphabetise? can't we alphabetise? can't you alphabetise? can't they alphabetise?
V-ing form
can't I be alphabetising? can't you be alphabetising? can't he be alphabetising? can't we be alphabetising? can't you be alphabetising? can't they be alphabetising?
Perfect
can't I have alphabetised? can't you have alphabetised? can't he have alphabetised? can't we have alphabetised? can't you have alphabetised? can't they have alphabetised?
V-ing perfect
can't I have been alphabetising? can't you have been alphabetising? can't he have been alphabetising? can't we have been alphabetising? can't you have been alphabetising? can't they have been alphabetising?