Yes No Questions
From Scottish Gaelic Grammar Wiki
Yes/No question (Adger and Ramchand 2005:(3))
An robh thu sgith? C.Q be.PST you tired 'Were you tired?'
Negative Yes/No question (Adger and Ramchand 2005:(6))
Nach robh thu sgith? C.Q.NEG be.PST you tired 'Weren't you tired?'
how to answer: yes or no