"I will go to the supermarket to buy bananas."

Translation: 我会去超市买香蕉。

[marchionesselle]

What's the difference if I write 要 instead of 会?

[Keith_APP]

Here 会 means a future plan; You say it to let the speaker know where to expect you or to hear if the speaker might want you to buy some other things.

要 would mean that you have a necessity to go, e.g. you are making banana bread but there is no banana in your house. Possible scenarios are

• the speaker wanted you to do some other things and by this you tell the speaker that you are occupied.
• you follow with a request to the speaker to do something for you while you are out
• you follow with a request to borrow the speaker's car

etc.

[NasuSamaruk0]

Then, you are saying "I want to go to the supermarket to buy bananas". If you replace 会 with 要

[maartendoc]

超 (chāo) = to exceed/super-
市 (shì) = market/city
超市 (chāoshì) = supermarket

[o-chefe]

Would Chinese people really use 会 at all here?