0a) Present continuous:
We use present continuous tense in the following cases:
- The sun is shining. (While I am speaking.)
- I am studying English at the moment. (An action in progress now.)
- I am meeting Ramesh later this evening. (A planned future action.)
b) Present simple:
We use present simple tense in the following cases:
- She cleans the house daily. (Need not be happening now.)
- We usually go once a week. (Repeated action.)
- The Sun rises in the East. (Permanent truth.)
- The news begins at 9 p.m. (Future event on a time-table.)
