- Let’s is a contraction of let us.
- Lets is the third-person singular present tense form of the verb “let.”
Homophones are a common cause of grammar mistakes. Let’s and lets are a pair of commonly confused homophones, and they share the same root word.
The Difference Between Let’s and Lets
Let’s and lets are based on the same verb, let, which means to allow or give permission.
Let’s is a contraction of “let us.” You use it to make suggestions about what you and someone else should do. Let’s go to the movies. Let’s invite Mom.
Lets is the third-person singular present tense form of verb let, which means to allow or give permission. If Mom lets us go to the movies without her, I’ll be surprised.
Let’s vs. Lets: Which Is Correct?
If you have friends over for dinner and it’s time to sit at the table, you can say:
You can also use let’s as an indirect or polite way of telling other people what to do:
It’s cold outside! Let’s all remember to bring our jackets.
If you want to sound more formal, you can avoid the contraction and use the whole phrase:
Now, if you want to use lets correctly, save it for when you want to talk about something that happens because someone or something allows it to happen:
Let’s and Lets: Examples
No, if we really want to do something about the worst effects of our electoral process, let’s start by simply having less of it.
from Grammarly Blog https://www.grammarly.com/blog/lets-vs-lets/