jump upon, jump off

[user_gary]

I can jump upon the table though it is 15 feet high. And also I can jump off the wall, though it is 70 feet high, to the ground without any injuries.


Please look at my sentences to see if I have correctly used the phrasal verbs (jump upon, jump off). Also please correct my sentences.

[mykwyner]

I don't know if there are rules about which preposition to use, but this is how I use them:

Jump upon something means the same thing as jump on something, that is, you are already on the thing and then you jump up and down on it.

If you start on the floor and then jump and land on a thing, then you jump up on the thing. "I can jump up on (or onto) that table."

Upon and Up on may look very similar, but they are pronounced differently and are used in different ways.

[user_gary]

Thank you mykwyner.
I surmise, my use of the phrase `jump off' in the sentence is correct.

Also, can I say, "I can jump up on the table though it is 15 feet high."?

Please help me.

[Anglika]

Your sentence is correct (though you must be an exceptional athlete!)