I can fray you can fray she can fray we can fray you can fray they can fray
V-ing form
I can be fraying you can be fraying she can be fraying we can be fraying you can be fraying they can be fraying
Perfect
I can have frayed you can have frayed she 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 she can have been fraying we can have been fraying you can have been fraying they can have been fraying
Negation
Simple form
I cannot fray you cannot fray she cannot fray we cannot fray you cannot fray they cannot fray
V-ing form
I cannot be fraying you cannot be fraying she cannot be fraying we cannot be fraying you cannot be fraying they cannot be fraying
Perfect
I cannot have frayed you cannot have frayed she cannot have frayed we cannot have frayed you cannot have frayed they cannot have frayed
V-ing perfect
I cannot have been fraying you cannot have been fraying she cannot have been fraying we cannot have been fraying you cannot have been fraying they cannot have been fraying
Interrogative form
Simple form
can I fray? can you fray? can she fray? can we fray? can you fray? can they fray?
V-ing form
can I be fraying? can you be fraying? can she be fraying? can we be fraying? can you be fraying? can they be fraying?
Perfect
can I have frayed? can you have frayed? can she 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 she have been fraying? can we have been fraying? can you have been fraying? can they have been fraying?
Interro-negative form
Simple form
can I not fray? can you not fray? can she not fray? can we not fray? can you not fray? can they not fray?
V-ing form
can I not be fraying? can you not be fraying? can she not be fraying? can we not be fraying? can you not be fraying? can they not be fraying?
Perfect
can I not have frayed? can you not have frayed? can she not have frayed? can we not have frayed? can you not have frayed? can they not have frayed?
V-ing perfect
can I not have been fraying? can you not have been fraying? can she not have been fraying? can we not have been fraying? can you not have been fraying? can they not have been fraying?