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  1. Present perfect simple ( I have worked ) - English Grammar Today -una referencia de la gramática del inglés hablado y escrito - Cambridge Dictionary

  2. Present perfect simple ( I have worked ) - English Grammar Today - a reference to written and spoken English grammar and usage - Cambridge Dictionary

  3. 29 de feb. de 2024 · To form the present perfect tense, you combine two elements: the conjugated form of the auxiliary verb “haber” and the past participle of the main verb. The verb “haber” changes form to agree with the subject pronoun. The past participle is created by adding -ado to the stem of -ar verbs and -ido to the stem of -er and -ir verbs.

  4. 16 de nov. de 2023 · The present perfect tense is an English verb tense used for past actions that are related to or continue into the present. It’s easily recognized by the auxiliary verbs (or helper verbs) have and has, as in, “I have gone fishing since I was a child.” Of all the English verb tenses, the present perfect is one of the most complicated because there’s not always a direct translation in ...

  5. 29 de may. de 2024 · Look at these examples to see how the present perfect simple and continuous are used. We've painted the bathroom. She's been training for a half-marathon. I've had three coffees already today! They've been waiting for hours. Try this exercise to test your grammar. Grammar test 1. Grammar B1-B2: Present perfect simple and present perfect ...

  6. 30 de may. de 2006 · Dove viene usato il simple past al posto del present perfect quando si usa"today" ... (Simple past - I'm not coming to work again today, that's something you only do once). "Today I've taken the subway 4 times." (And I may take it again, and again). I hope this helps; I'm a bit confused as to the thrust of your query.