Rhaid [To must]

• Rhaid i fi [I must…]

  • Rhaid i fi ffonio.

  • Rhaid i fi lanhau. (Note treiglad meddwl.)

• Rhaid i ti [You must…]

  • Rhaid i ti fynd.

• Rhaid i chi [You lot must/ You (formal) must]

  • Rhaid i chi fynd.

• Rhaid i Bob [Bob must…]

  • Rhaid i Bob goginio.

• Rhaid iddo fe/ Rhaid iddo o. [He must…]

  • Rhaid iddo fe siarad.

  • Rhaid iddo o siarad.

• Rhaid iddi hi. [She must]

  • Rhaid iddi hi siarad.

• Rhaid i ni [We must]

  • Rhaid i ni chwarae.

• Rhaid i’r (plural noun) [The __ must]

  • Rhaid i’r gathod bwyta.

• Add “Does dim” at the beginning to make it negative.

  • Does dim rhaid i fi lanhau.

  • Does dim rhaid i Mari fynd.

• To make a question using Rhaid, add “Oes” at the begining.

  • Oes rhaid i fi ffonio?

    • Oes/Nac Oes