Again, as a non-native English speaker, you realize that some verbs have a different meaning when you add a second word. For example, the verb take, take in vs take on, they have different meanings. I will put here some examples and I will try to explain them.
As a non-native English speaker, this is a very common question when to use these adverbs. We understand the meaning of them: to state a possibility. However, you may have read or listened to them in very different contexts.
If you are from abroad as I was to Canada, you may hear about the myth that Canada pays you for having children. This is half true, because Canada does not pay for having children (it is a benefit), and it does not pay to everyone; only Canadians, permanent residents and temporal foreign works with 18 or more months living in the country can have this benefit, and of course, being a taxpayer.
I will write how I did to apply for this benefit.