SHOULD definition: must; ought (used to indicate duty, propriety, or expediency). See examples of should used in a sentence. 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 is a modal verb, and all modal verbs are followed by an infinitive (without to). You should to listen to me. You should listen to me. The negative form of should is should not or shouldn’t. You should not be here. = You shouldn’t be here. To ask questions, we use should + subject + infinitive. We don’t use the verb do to ask questions. This article explains the use of should in sentences in English grammar. It also describes the use of should, use of shall, and would and use of ‘should have’. We use the full form should not in formal contexts or when we want to emphasis something: We should not forget those who have given their lives in the defence of freedom. The meaning of SHOULD in English with example sentences. Learn English modal verbs - Should vs Ought to Discover how to use the verb should with grammar and concrete examples | Practice with exercises proposed by ABA English 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). should (third-person singular simple present should, no present participle, no simple past or past participle) (modal, auxiliary, defective) Ought to; indicating opinion, advice, or instruction, about what is required or desirable. SHOULD definition: 1. used to say or ask what is the correct or best thing to do: 2. used to show when something is…. Learn more.