Learn Russian: Ты должен или принять условия, или уйти. - You must either accept the conditions or leave.

When using double coordinating conjunctions like или ... или (either ... or), Russian punctuation rules require a comma before the second conjunction. This is different from English, which usually does not use a comma to separate either and or.

Can I put the first или at the very beginning of the sentence?

You could technically say Или ты должен принять условия, или уйти, but placing или right before the specific alternatives (принять and уйти) is much more natural. It clearly pairs the exact two actions that are being weighed against each other: either accept or leave.

Why are the verbs принять and уйти in the perfective aspect?

This sentence describes a specific, one-time choice with a final result. You must either complete the action of accepting, or complete the action of leaving. If this were a general rule about repeated situations (like a company policy for all visitors), you would use the imperfective verbs принимать and уходить.

If I am speaking to a female, do I need to change должен?

Yes! Должен (must/obliged) is a short adjective that agrees in gender with the subject. Because it is должен, we know ты refers to a male here. If speaking to a female, you would change it to the feminine form: Ты должна или принять условия, или уйти.