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