
If you have questions about the conjugation of прогалина or Russian nouns in general, you can practice and get feedback from a professional tutor.
В трёх метрах левее должна быть прогалина...
Three metres to your left, there should be a small clearing...
€ пойду на прогалину кормить белую ворону.
I will go into the clearing and the Crow Weire feed.