Questions & Answers about A vaca come erva o dia todo.
Why is there no 'a' before erva?
In Portuguese, when talking about a general category or an unspecified quantity of something uncountable (like grass, water, or rice), you often leave out the definite article. Since the cow is eating grass in general, not a specific patch of grass, it is just come erva.
Why is it o dia when dia ends in '-a'? Shouldn't it be a feminine word?
Why does todo come at the end of o dia todo?