I can circumnavigate you can circumnavigate he can circumnavigate we can circumnavigate you can circumnavigate they can circumnavigate
V-ing form
I can be circumnavigating you can be circumnavigating he can be circumnavigating we can be circumnavigating you can be circumnavigating they can be circumnavigating
Perfect
I can have circumnavigated you can have circumnavigated he can have circumnavigated we can have circumnavigated you can have circumnavigated they can have circumnavigated
V-ing perfect
I can have been circumnavigating you can have been circumnavigating he can have been circumnavigating we can have been circumnavigating you can have been circumnavigating they can have been circumnavigating
Negation
Simple form
I can't circumnavigate you can't circumnavigate he can't circumnavigate we can't circumnavigate you can't circumnavigate they can't circumnavigate
V-ing form
I can't be circumnavigating you can't be circumnavigating he can't be circumnavigating we can't be circumnavigating you can't be circumnavigating they can't be circumnavigating
Perfect
I can't have circumnavigated you can't have circumnavigated he can't have circumnavigated we can't have circumnavigated you can't have circumnavigated they can't have circumnavigated
V-ing perfect
I can't have been circumnavigating you can't have been circumnavigating he can't have been circumnavigating we can't have been circumnavigating you can't have been circumnavigating they can't have been circumnavigating
Interrogative form
Simple form
can I circumnavigate? can you circumnavigate? can he circumnavigate? can we circumnavigate? can you circumnavigate? can they circumnavigate?
V-ing form
can I be circumnavigating? can you be circumnavigating? can he be circumnavigating? can we be circumnavigating? can you be circumnavigating? can they be circumnavigating?
Perfect
can I have circumnavigated? can you have circumnavigated? can he have circumnavigated? can we have circumnavigated? can you have circumnavigated? can they have circumnavigated?
V-ing perfect
can I have been circumnavigating? can you have been circumnavigating? can he have been circumnavigating? can we have been circumnavigating? can you have been circumnavigating? can they have been circumnavigating?
Interro-negative form
Simple form
can't I circumnavigate? can't you circumnavigate? can't he circumnavigate? can't we circumnavigate? can't you circumnavigate? can't they circumnavigate?
V-ing form
can't I be circumnavigating? can't you be circumnavigating? can't he be circumnavigating? can't we be circumnavigating? can't you be circumnavigating? can't they be circumnavigating?
Perfect
can't I have circumnavigated? can't you have circumnavigated? can't he have circumnavigated? can't we have circumnavigated? can't you have circumnavigated? can't they have circumnavigated?
V-ing perfect
can't I have been circumnavigating? can't you have been circumnavigating? can't he have been circumnavigating? can't we have been circumnavigating? can't you have been circumnavigating? can't they have been circumnavigating?