I can refresh you can refresh he can refresh we can refresh you can refresh they can refresh
V-ing form
I can be refreshing you can be refreshing he can be refreshing we can be refreshing you can be refreshing they can be refreshing
Perfect
I can have refreshed you can have refreshed he can have refreshed we can have refreshed you can have refreshed they can have refreshed
V-ing perfect
I can have been refreshing you can have been refreshing he can have been refreshing we can have been refreshing you can have been refreshing they can have been refreshing
Negation
Simple form
I can't refresh you can't refresh he can't refresh we can't refresh you can't refresh they can't refresh
V-ing form
I can't be refreshing you can't be refreshing he can't be refreshing we can't be refreshing you can't be refreshing they can't be refreshing
Perfect
I can't have refreshed you can't have refreshed he can't have refreshed we can't have refreshed you can't have refreshed they can't have refreshed
V-ing perfect
I can't have been refreshing you can't have been refreshing he can't have been refreshing we can't have been refreshing you can't have been refreshing they can't have been refreshing
Interrogative form
Simple form
can I refresh? can you refresh? can he refresh? can we refresh? can you refresh? can they refresh?
V-ing form
can I be refreshing? can you be refreshing? can he be refreshing? can we be refreshing? can you be refreshing? can they be refreshing?
Perfect
can I have refreshed? can you have refreshed? can he have refreshed? can we have refreshed? can you have refreshed? can they have refreshed?
V-ing perfect
can I have been refreshing? can you have been refreshing? can he have been refreshing? can we have been refreshing? can you have been refreshing? can they have been refreshing?
Interro-negative form
Simple form
can't I refresh? can't you refresh? can't he refresh? can't we refresh? can't you refresh? can't they refresh?
V-ing form
can't I be refreshing? can't you be refreshing? can't he be refreshing? can't we be refreshing? can't you be refreshing? can't they be refreshing?
Perfect
can't I have refreshed? can't you have refreshed? can't he have refreshed? can't we have refreshed? can't you have refreshed? can't they have refreshed?
V-ing perfect
can't I have been refreshing? can't you have been refreshing? can't he have been refreshing? can't we have been refreshing? can't you have been refreshing? can't they have been refreshing?