It never rains but it pours.

Pour-over wills are used to transfer assets into a trust after the testator's death.

I pour cold water on the plants every morning.

He poured gasoline on the fire.

He decided to pour gasoline on the fire by spreading rumors about his colleagues.

He pours gasoline on the fire.

He decided to pour fuel on the fire by spreading rumors about his colleague.

It never rains but that it pours.

It's pouring dogs and cats outside.

It's pouring cats and dogs outside.