How to count singular/plural variants of keywords?

Hi, I am fairly new to using your plug-in, I’m trying it after using another one for some time. But I’m running into an issue I’m not sure how to address. When I put in focus keywords, it only looks for the exact match of that keyword. But I’m almost positive Google would consider these two versions the same.

Here is an example. I am trying to rank for the phrase “[my topic] skills”. For the sake of clarity, let’s just pretend my topic is breakdancing. So below that I have a list of items using heading tags, and each one contains the keyword at the beginning like this:

Breakdancing Skill #1: Blah blah blah.

The problem is, Rank Math is not recognizing that as a use of the keyword because it says skill and not skills. But wouldn’t Google consider it to be the same since it’s a singular version of the plural word? Is there any way I can get Rank Math to figure this out? Thanks for any advice.