Plurals - only two?

For which language do you ask?

Raymond10:30, 12 July 2021

I only translate into Welsh / cy.

Robin Owain (talk)12:47, 12 July 2021

I am not familiar with Welsh and don't know off hand, if there are strict limitations for Welsh in the system.

Have you tried {{PLURAL:$1|1=diwrnod|2=deuddydd|3=tridiau|dirnod}}. See Plural for more information.

Raymond06:46, 13 July 2021