The bird soared upon the wing.

The dust from the construction site can breathe upon the clean windows.

I will condescend upon the details of the project.

Upon reflection, I realized that I had made a mistake.

I swear upon my mother's grave that I will never betray you.

Upon pain of losing your job, you must follow the company's code of conduct.

I chances upon a rare book at the bookstore.

I chanced upon an old friend at the grocery store.

I was chancing upon a rare book at the bookstore.

She wrote down her thoughts upon the pad.