1ngokusesikweni-nga-May we leave the classroom? — Singaphuma eklasini?Yes, you may go — Ewe, ningahamba
2-nga-It may rain later — Isengana ethubeni
In Sense 1 above, we often use the less formal word 'can' instead, as in 'Yes, you can go.'
1uMeyiuCanzibeHe will go in May — Uya kuhamba ngoMeyi