I can planish you can planish he can planish we can planish you can planish they can planish
V-ing form
I can be planishing you can be planishing he can be planishing we can be planishing you can be planishing they can be planishing
Perfect
I can have planished you can have planished he can have planished we can have planished you can have planished they can have planished
V-ing perfect
I can have been planishing you can have been planishing he can have been planishing we can have been planishing you can have been planishing they can have been planishing
Negation
Simple form
I can't planish you can't planish he can't planish we can't planish you can't planish they can't planish
V-ing form
I can't be planishing you can't be planishing he can't be planishing we can't be planishing you can't be planishing they can't be planishing
Perfect
I can't have planished you can't have planished he can't have planished we can't have planished you can't have planished they can't have planished
V-ing perfect
I can't have been planishing you can't have been planishing he can't have been planishing we can't have been planishing you can't have been planishing they can't have been planishing
Interrogative form
Simple form
can I planish? can you planish? can he planish? can we planish? can you planish? can they planish?
V-ing form
can I be planishing? can you be planishing? can he be planishing? can we be planishing? can you be planishing? can they be planishing?
Perfect
can I have planished? can you have planished? can he have planished? can we have planished? can you have planished? can they have planished?
V-ing perfect
can I have been planishing? can you have been planishing? can he have been planishing? can we have been planishing? can you have been planishing? can they have been planishing?
Interro-negative form
Simple form
can't I planish? can't you planish? can't he planish? can't we planish? can't you planish? can't they planish?
V-ing form
can't I be planishing? can't you be planishing? can't he be planishing? can't we be planishing? can't you be planishing? can't they be planishing?
Perfect
can't I have planished? can't you have planished? can't he have planished? can't we have planished? can't you have planished? can't they have planished?
V-ing perfect
can't I have been planishing? can't you have been planishing? can't he have been planishing? can't we have been planishing? can't you have been planishing? can't they have been planishing?