It's a bit tricky because it looks like it should be "foregoes" in the third person singular (he/she/it). However, "forego" is an irregular verb, so it doesn't follow the standard conjugation rules.
Here are some examples:
* I forego dessert tonight.
* You forego your coffee break.
* He/She/It foregoes the opportunity.
* We forego the extra toppings.
* They forego the expensive option.