I can reed you can reed he can reed we can reed you can reed they can reed
V-ing form
I can be reeding you can be reeding he can be reeding we can be reeding you can be reeding they can be reeding
Perfect
I can have reeded you can have reeded he can have reeded we can have reeded you can have reeded they can have reeded
V-ing perfect
I can have been reeding you can have been reeding he can have been reeding we can have been reeding you can have been reeding they can have been reeding
Negation
Simple form
I can't reed you can't reed he can't reed we can't reed you can't reed they can't reed
V-ing form
I can't be reeding you can't be reeding he can't be reeding we can't be reeding you can't be reeding they can't be reeding
Perfect
I can't have reeded you can't have reeded he can't have reeded we can't have reeded you can't have reeded they can't have reeded
V-ing perfect
I can't have been reeding you can't have been reeding he can't have been reeding we can't have been reeding you can't have been reeding they can't have been reeding
Interrogative form
Simple form
can I reed? can you reed? can he reed? can we reed? can you reed? can they reed?
V-ing form
can I be reeding? can you be reeding? can he be reeding? can we be reeding? can you be reeding? can they be reeding?
Perfect
can I have reeded? can you have reeded? can he have reeded? can we have reeded? can you have reeded? can they have reeded?
V-ing perfect
can I have been reeding? can you have been reeding? can he have been reeding? can we have been reeding? can you have been reeding? can they have been reeding?
Interro-negative form
Simple form
can't I reed? can't you reed? can't he reed? can't we reed? can't you reed? can't they reed?
V-ing form
can't I be reeding? can't you be reeding? can't he be reeding? can't we be reeding? can't you be reeding? can't they be reeding?
Perfect
can't I have reeded? can't you have reeded? can't he have reeded? can't we have reeded? can't you have reeded? can't they have reeded?
V-ing perfect
can't I have been reeding? can't you have been reeding? can't he have been reeding? can't we have been reeding? can't you have been reeding? can't they have been reeding?