Penso que cobre a maioria dos exemplos:
over (preposition - above or higher than something else, sometimes so that one thing covers the other; above)
eg. I put my hands over my eyes/ears because I couldn't bear to watch/listen.
over (preposition - in a position that is covering something)
eg. Put a clean cloth over the cakes while they cool.
over (preposition - across from one side to the other, especially by going up and then down)
eg. She is always chatting with her neighbour over the garden fence.
over (preposition - falling
falling down from somewhere: The coin rolled over the edge of the table.
falling because of stepping on something: She tripped over a toy lying on the path.
over (preposition - more than
more than: I value quality of life over money.
increasing to further than a particular limit or point: They are already $25 million over budget.
over (preposition - on the other side of:)
eg. The story continues over the page.
over (preposition - referring to a cause of interest, worry, discussion, etc.) connected with or about:
eg. There's no point in arguing over something so unimportant.
over (preposition - during something, or while doing something)
eg. I was in Seattle over the summer.
over (preposition - Feeling Better)
eg. It takes you a while to get over an illness like that.
over (preposition - Control)
eg. A good teacher has an easy authority over a class.
over (preposition - Using)
eg. They spoke over the phone.
over (preposition - Mathematics)
eg. 40 over 7 is roughly 6.
