They both are modal, must mostly is used for obligation ,while should is used for suggestion for example if we say : you must go (thats means you have to go ) you should go (thats means if you do that it will be your on your behalf ) but sometimes must can represent should you must watch this movie same meaing you should watch this film the differece is between them that you want to emphasize that dont miss this film :D

My main language is turkish If you get any problem, you can ask me without hesitating

can I help you with my english can you help me with your english I hope that either of them is true I like speaking english (gerund) I like to speak english (infinitive) both of them have same meaning :D

Hello Riccardo, 

You bring nice question up to discuss.

Im kurdish,and our typical food is quite various tough their name has not been heard so far 

I would like to give their name in english ,but I also dont know 

regards Archer