Whether... or not

Whether we find a joke funny or not largely depends on where we have been brought up.

Whether we feel happy or not largely depends on what we are looking for.

Whether you could think on your feet or not largely depends on the your acquired knowledge.

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Great job!  Be aware that each of these sentence can also be structured a little differently.

Whether or not we find a joke funny largely depends on where we have been brought up.

Whether or not we feel happy largely depends on what we are looking for.

Whether or not you could think on your feet largely depends on your acquired knowledge.