Tuesday, November 27, 2012

Should with perfect infinitive

November 27, 2012

Should can be used with the perfect infinitive (have + past participle). This structure has several meanings. Should have + past participle This structure is used to talk about past events which did not happen. I should have posted that letter yesterday itself, but I forgot. She should have knocked at the door before entering […]

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Free Grammar Guide: "120 Deadly Grammar and Vocabulary Mistakes."