I can read you can read she can read we can read you can read they can read
V-ing form
I can be reading you can be reading she can be reading we can be reading you can be reading they can be reading
Perfect
I can have read you can have read she can have read we can have read you can have read they can have read
V-ing perfect
I can have been reading you can have been reading she can have been reading we can have been reading you can have been reading they can have been reading
Negation
Simple form
I can't read you can't read she can't read we can't read you can't read they can't read
V-ing form
I can't be reading you can't be reading she can't be reading we can't be reading you can't be reading they can't be reading
Perfect
I can't have read you can't have read she can't have read we can't have read you can't have read they can't have read
V-ing perfect
I can't have been reading you can't have been reading she can't have been reading we can't have been reading you can't have been reading they can't have been reading
Interrogative form
Simple form
can I read? can you read? can she read? can we read? can you read? can they read?
V-ing form
can I be reading? can you be reading? can she be reading? can we be reading? can you be reading? can they be reading?
Perfect
can I have read? can you have read? can she have read? can we have read? can you have read? can they have read?
V-ing perfect
can I have been reading? can you have been reading? can she have been reading? can we have been reading? can you have been reading? can they have been reading?
Interro-negative form
Simple form
can't I read? can't you read? can't she read? can't we read? can't you read? can't they read?
V-ing form
can't I be reading? can't you be reading? can't she be reading? can't we be reading? can't you be reading? can't they be reading?
Perfect
can't I have read? can't you have read? can't she have read? can't we have read? can't you have read? can't they have read?
V-ing perfect
can't I have been reading? can't you have been reading? can't she have been reading? can't we have been reading? can't you have been reading? can't they have been reading?