What is the difference between let's go to grandma's house and we gonna to go grandma's house ?Feel free to just provide example sentences.

The difference between "let's go to grandma's house" and "we gonna to go grandma's house" is the grammatical mood they use:

- Let's go to... = Vamos para... (imperative)
- We're going to do para... = Nós vamos para... (indicative)

"Let's go to grandma's house" is in the imperative mood, which is used to give commands or make requests. It is often used to express an action that the speaker wants someone else to do. In this case, "let's" is a contraction of "let us" and it is a way to express a suggestion or an invitation for the listener to go along with the speaker to grandma's house.

On the other hand, "we gonna to go grandma's house" is in the indicative mood, which is used to make statements of fact or to describe a situation. It is often used to express an action that the speaker expects to happen or plans to do. In this case, "we gonna" is a colloquial form of "we're going to" and it is a way to express the intention of the speaker and the listener to go to grandma's house in the future.