I can superintend you can superintend he can superintend we can superintend you can superintend they can superintend
V-ing form
I can be superintending you can be superintending he can be superintending we can be superintending you can be superintending they can be superintending
Perfect
I can have superintended you can have superintended he can have superintended we can have superintended you can have superintended they can have superintended
V-ing perfect
I can have been superintending you can have been superintending he can have been superintending we can have been superintending you can have been superintending they can have been superintending
Negation
Simple form
I cannot superintend you cannot superintend he cannot superintend we cannot superintend you cannot superintend they cannot superintend
V-ing form
I cannot be superintending you cannot be superintending he cannot be superintending we cannot be superintending you cannot be superintending they cannot be superintending
Perfect
I cannot have superintended you cannot have superintended he cannot have superintended we cannot have superintended you cannot have superintended they cannot have superintended
V-ing perfect
I cannot have been superintending you cannot have been superintending he cannot have been superintending we cannot have been superintending you cannot have been superintending they cannot have been superintending
Interrogative form
Simple form
can I superintend? can you superintend? can he superintend? can we superintend? can you superintend? can they superintend?
V-ing form
can I be superintending? can you be superintending? can he be superintending? can we be superintending? can you be superintending? can they be superintending?
Perfect
can I have superintended? can you have superintended? can he have superintended? can we have superintended? can you have superintended? can they have superintended?
V-ing perfect
can I have been superintending? can you have been superintending? can he have been superintending? can we have been superintending? can you have been superintending? can they have been superintending?
Interro-negative form
Simple form
can I not superintend? can you not superintend? can he not superintend? can we not superintend? can you not superintend? can they not superintend?
V-ing form
can I not be superintending? can you not be superintending? can he not be superintending? can we not be superintending? can you not be superintending? can they not be superintending?
Perfect
can I not have superintended? can you not have superintended? can he not have superintended? can we not have superintended? can you not have superintended? can they not have superintended?
V-ing perfect
can I not have been superintending? can you not have been superintending? can he not have been superintending? can we not have been superintending? can you not have been superintending? can they not have been superintending?