It's not pertinent.

I have a pertinent question.

It isn't pertinent.

He asked a few pertinent questions.

Technically, you're right. However, you must also consider the unusual circumstances that pertain here.

Yanni is perturbed about Skura's lesbian relationship with Nuja.

As for the theoretical side, Peterson's claim is pertinent to our discussion.

‘Creole’ means pertaining to people who are descended from a mixed European and African background, especially in the Caribbean islands, and their culture and cuisine, or the languages of these people or of others.

Do you think this is pertinent?

Tom threw a lasso around one of the low-flying, small clouds floating to Australia and clung to the end of the rope. He slowly climbed up and lay down on the cloud until it arrived in Perth.