I can fray you can fray he can fray we can fray you can fray they can fray
V-ing form
I can be fraying you can be fraying he can be fraying we can be fraying you can be fraying they can be fraying
Perfect
I can have frayed you can have frayed he can have frayed we can have frayed you can have frayed they can have frayed
V-ing perfect
I can have been fraying you can have been fraying he can have been fraying we can have been fraying you can have been fraying they can have been fraying
Negation
Simple form
I can't fray you can't fray he can't fray we can't fray you can't fray they can't fray
V-ing form
I can't be fraying you can't be fraying he can't be fraying we can't be fraying you can't be fraying they can't be fraying
Perfect
I can't have frayed you can't have frayed he can't have frayed we can't have frayed you can't have frayed they can't have frayed
V-ing perfect
I can't have been fraying you can't have been fraying he can't have been fraying we can't have been fraying you can't have been fraying they can't have been fraying
Interrogative form
Simple form
can I fray? can you fray? can he fray? can we fray? can you fray? can they fray?
V-ing form
can I be fraying? can you be fraying? can he be fraying? can we be fraying? can you be fraying? can they be fraying?
Perfect
can I have frayed? can you have frayed? can he have frayed? can we have frayed? can you have frayed? can they have frayed?
V-ing perfect
can I have been fraying? can you have been fraying? can he have been fraying? can we have been fraying? can you have been fraying? can they have been fraying?
Interro-negative form
Simple form
can't I fray? can't you fray? can't he fray? can't we fray? can't you fray? can't they fray?
V-ing form
can't I be fraying? can't you be fraying? can't he be fraying? can't we be fraying? can't you be fraying? can't they be fraying?
Perfect
can't I have frayed? can't you have frayed? can't he have frayed? can't we have frayed? can't you have frayed? can't they have frayed?
V-ing perfect
can't I have been fraying? can't you have been fraying? can't he have been fraying? can't we have been fraying? can't you have been fraying? can't they have been fraying?