Here are some examples:
* "Todo lo que necesito es amor." (Everything that I need is love.)
* "Todo lo que aprendí en la escuela me ayudó en la vida." (All that I learned in school helped me in life.)
* "Todo lo que dijo fue mentira." (Everything that he said was a lie.)
Note: "Todo lo que" is often used in conjunction with a verb or phrase to specify the action or situation related to the "everything".