Lol of course :)

I'm referring to passive voice.

Passive- She was chased. (By zombies)
Active- The zombies chased her.

See how you can add by zombies to the first one?

If you can add 'by zombies' and it makes sense, try to change the sentence. You can't always, but you don't want too much passive voice in your writing.

Hope that explained it :)