If you want to use the conditional should (which doesn't mean advice—it means if and states a fact), you could say Should you not want indigestion, eat healthier food. Learn how to use SHOULD or SHOULDN'T to give advice, suggestions, opinions and recommendations in English. Should is a modal verb, and modal verbs are followed by an infinitive (without to). Ever wondered how to use should correctly in your sentences? You're not alone. Many learners and even experienced writers sometimes find this little word tricky to master. But don’t worry—I’m here to give you the most accurate and practical guidance on using should confidently and correctly. Both should you and you should are correct, but they are used in different contexts. Should you is typically used to ask a question or make a suggestion, while you should is a statement or advice. Learn how to use the English verbs should, must, and ought to. Get clear, simple grammar advice from expert English teachers at the British Council. Should you be lucky enough to be invited to Seoul, If you are lucky enough to be invited to Seoul, They both mean the same thing, as they both show that this person may or may not be invited to Seoul. There is very little difference. We can also use Should you as an alternative to If you should in these situations by changing the order of the subject and the verb. Compare these two sentences with the examples above. Everyone should know the rules. There should be four, not six. You should be ashamed of yourself! They should have been more careful. Should I try again? I shouldn't have to remind them. We use the verb 'should', 'shouldn't' to give somebody advice. Learn modal verbs 'should' and 'shouldn’t' in this A2 Pre-intermediate grammar lesson. Clear rules, charts and exercises. Practise now!.