How to code a three mode robot?

[AAA]

I’m currently struggling with coding a three mode robot. How do you do this?

The robot would just stay in mode 1 no matter what I do.

Please help! Any advice would be greatly appreciated!

[AAA]

Here are screenshots of the code

[Best_codes]

mBot cannot multitask.
See more about this type of issue here:

mBot Ultrasonic Sensor Code not working

Hi, I have an assessment due in a couple of days and when I try and make the mBot move forward while stopping before hitting something with the ultrasonic sensor, it works. But when I add more functions, it does not. Can you please help me? Thank you so much. [https://ibb.co/LR559W6] (code that works) [https://ibb.co/hCzsmDr] (code that does not work)

If you need more help, mention me as @Best_codes, and I will make a code for you if I find time.

Thanks for your time,
Best_codes