1. "Did you do [something] last [time period]?"
* Wnaethoch chi wneud [rhywbeth] ddiwethaf [cyfnod amser]?
For example:
* Did you do your homework last night? - Wnaethoch chi wneud eich gwaith cartref ddiwethaf y nos?
* Did you go to the store last week? - Wnaethoch chi fynd i'r siop yr wythnos diwethaf?
2. "What did you do last [time period]?"
* Beth wnaethoch chi ei wneud ddiwethaf [cyfnod amser]?
For example:
* What did you do last weekend? - Beth wnaethoch chi ei wneud ddiwethaf y penwythnos?
* What did you do last summer? - Beth wnaethoch chi ei wneud ddiwethaf y haf?
3. "Did you do [something] recently?"
* Ydych chi wedi gwneud [rhywbeth] yn ddiweddar?
For example:
* Did you do your laundry recently? - Ydych chi wedi gwneud eich golchfa yn ddiweddar?
* Did you eat breakfast recently? - Ydych chi wedi bwyta brecwast yn ddiweddar?
Remember to replace "[something]" and "[time period]" with the appropriate words for your specific sentence.