He was whistling past the graveyard, pretending everything was fine.

He whistled past the graveyard.

He whistles past the graveyard every night.

He used to be a great athlete, but now he is past his prime.

I bought several curry pastes from the grocery store.

I bought three tomato pastes from the grocery store.

The cats chased the mice.

I bought some Vienna pastes from the bakery.

I bought some fish pastes from the market.

The march-pasts at the parade were impressive.