Nobody was to be seen on the main street. ✬

A taxi drew up at the main gate. ✬

What is the main industry in this town? ✬

What is the main purpose of this plan? ✬

What are the main sights around here? ✬

This is the main street of this city. ✬

Coffee is Brazil's main product. ✬

When to start is the main problem. ✬

There isn't anybody in front of the main gate yet. ✬

Now, we show how this lemma can be used to prove our main theorem. ✬