I can refresh you can refresh she can refresh we can refresh you can refresh they can refresh
V-ing form
I can be refreshing you can be refreshing she can be refreshing we can be refreshing you can be refreshing they can be refreshing
Perfect
I can have refreshed you can have refreshed she 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 she can have been refreshing we can have been refreshing you can have been refreshing they can have been refreshing
Negation
Simple form
I cannot refresh you cannot refresh she cannot refresh we cannot refresh you cannot refresh they cannot refresh
V-ing form
I cannot be refreshing you cannot be refreshing she cannot be refreshing we cannot be refreshing you cannot be refreshing they cannot be refreshing
Perfect
I cannot have refreshed you cannot have refreshed she cannot have refreshed we cannot have refreshed you cannot have refreshed they cannot have refreshed
V-ing perfect
I cannot have been refreshing you cannot have been refreshing she cannot have been refreshing we cannot have been refreshing you cannot have been refreshing they cannot have been refreshing
Interrogative form
Simple form
can I refresh? can you refresh? can she refresh? can we refresh? can you refresh? can they refresh?
V-ing form
can I be refreshing? can you be refreshing? can she be refreshing? can we be refreshing? can you be refreshing? can they be refreshing?
Perfect
can I have refreshed? can you have refreshed? can she 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 she have been refreshing? can we have been refreshing? can you have been refreshing? can they have been refreshing?
Interro-negative form
Simple form
can I not refresh? can you not refresh? can she not refresh? can we not refresh? can you not refresh? can they not refresh?
V-ing form
can I not be refreshing? can you not be refreshing? can she not be refreshing? can we not be refreshing? can you not be refreshing? can they not be refreshing?
Perfect
can I not have refreshed? can you not have refreshed? can she not have refreshed? can we not have refreshed? can you not have refreshed? can they not have refreshed?
V-ing perfect
can I not have been refreshing? can you not have been refreshing? can she not have been refreshing? can we not have been refreshing? can you not have been refreshing? can they not have been refreshing?