While I agree with vytah, I would also note that it is best to split my jemy, or skip "my" , especially in speaking as it more often than not sounds like myjemy = we wash. Eat is strange verb so ja jem, ty jesz my jemy, wy jecie all sound like something else and it is best to split those

A tiny bit less common, but still correct.

Yes, perfectly okay.

sure

It sounds exactly as bad as the English sentence with the same word order.