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  2. Present perfect - Wikipedia

    en.wikipedia.org/wiki/Present_perfect

    The present perfect is a grammatical combination of the present tense and perfect aspect that is used to express a past event that has present consequences. [1] The term is used particularly in the context of English grammar to refer to forms like "I have finished".

  3. Uses of English verb forms - Wikipedia

    en.wikipedia.org/wiki/Uses_of_English_verb_forms

    The present perfect may also be used with future reference, instead of the future perfect, in those dependent clauses where future occurrence is denoted by present tense (see § Dependent clauses below). For example: When you have written it, show it to me. For the possibility of a present perfect subjunctive, see English subjunctive.

  4. Perfect (grammar) - Wikipedia

    en.wikipedia.org/wiki/Perfect_(grammar)

    The perfect can also be combined with another aspect [21] that is marked in English – the progressive (or continuous) aspect. In perfect progressive (or perfect continuous) constructions, the perfect auxiliary (a form of have) is followed by the past participle been (from be, the auxiliary of the progressive aspect), which in turn is followed ...

  5. Continuous and progressive aspects - Wikipedia

    en.wikipedia.org/wiki/Continuous_and_progressive...

    The present continuous tense has a very predictable conjugation pattern even for verbs that are typically irregular, such as essere ("to be") and avere ("to have"). For verbs with reduced infinitives, the gerund uses the same stem as the imperfect (which sometimes corresponds to the stem of the 1st person singular indicative present).

  6. Business Process Model and Notation - Wikipedia

    en.wikipedia.org/wiki/Business_Process_Model_and...

    A task represents a single unit of work that is not or cannot be broken down to a further level of business process detail. It is referred to as an atomic activity. A task is the lowest level activity illustrated on a process diagram. A set of tasks may represent a high-level procedure. Sub-process

  7. Present perfect continuous - Wikipedia

    en.wikipedia.org/?title=Present_perfect...

    To a section: This is a redirect from a topic that does not have its own page to a section of a page on the subject. For redirects to embedded anchors on a page, use {{R to anchor}} instead.

  8. Work unit - Wikipedia

    en.wikipedia.org/wiki/Work_unit

    A work unit or danwei (simplified Chinese: 单位; traditional Chinese: 單位; pinyin: dān wèi) is the name given to a place of employment in the People's Republic of China. The term danwei remains in use today, as people still use it to refer to their workplace.

  9. Present perfect tense - Wikipedia

    en.wikipedia.org/?title=Present_perfect_tense&...

    From a longer title: This is a redirect from a title that is a complete, more complete or longer version of the topic's name.It leads to the title in accordance with the naming conventions for common names and can help writing and searches.