![]() Thus, these would both be simple past verb forms. In both of these cases, the action happened in the past. These occur when the infinitive is combined with the word “have.” Sometimes, problems arise when infinitives are used with verbs of the future, such as “hope,” “plan,” “expect,” “intend,” or “want.” Infinitives also have perfect tense forms. Present Perfect: “If John has done his homework, he can go to the movies.” In this case, John has not yet completed his homework, but he will most likely do so soon. Simple Past: “John did his homework so he can go to the movies.” In this example, John has already completed his homework.Ģ. Present Perfect: “Betty has taught for ten years.” This means that Betty taught for ten years, and she still teaches today.ġ. Simple Past: “Betty taught for ten years.” This means that Betty taught in the past she is no longer teaching.Ģ. The present perfect consists of a past participle (the third principal part) with "has" or "have." It designates action which began in the past but which continues into the present or the effect of which still continues.ġ. The following are the most common auxiliaries: be, being, been, can, do, may, must, might, could, should, ought, shall, will, would, has, have, had. In the above examples, will or will have are the auxiliaries. Here’s a useful tip: all of the perfect tenses are formed by adding an auxiliary or auxiliaries to the past participle, the third principal part.ġ st principal part (simple present): ring, walkĢ nd principal part (simple past): rang, walkedģ rd principal part (past participle): rung, walked Usually, the perfect tenses are the hardest to remember. Understanding the six basic tenses allows writers to re-create much of the reality of time in their writing. Most English tenses, as many as thirty of them, are marked by other words called auxiliaries. Only two tenses are conveyed through the verb alone: present (“sing") and past (“sang"). ![]() This handout explains and describes the sequence of verb tenses in English. Writing Letters of Recommendation for Students.
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