On the basis of their grammatical behavior the words of a language are divided into several classes. These different classes of words are called the… Continue reading
Parts of Speech
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Negative questions
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Contracted and uncontracted negative questions have different word order. Uncontracted negative questions are usually used in a formal style. Aren’t you coming? (Contracted – auxiliary… Continue reading
Negative verb forms
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The negative verb forms are made by putting not after an auxiliary verb. She has invited us. (Affirmative) She has not invited us. (Negative) It… Continue reading
Using Perfect Infinitives
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The structure ‘have + past participle’ is called a perfect infinitive. Perfect infinitives can have the same kind of meaning as perfect or past tenses.… Continue reading
Present progressive and simple present: differences
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Long lasting situations The present progressive is not normally used to talk about long lasting or permanent situations. Instead, we use the simple present. My… Continue reading