Present Perfect: to talk about actions or events that started before now and have a present connection or result., to focus on the completed action and the present result of that action. It often explains how much or how many (including none)., can be used instead of the continuous form with no difference in meaning for the listener. This is true of verbs like live, work, study and teach, whose meaning suggests continuation., Present Perfect continuous: to focus on an action that lasts for a period of time and/or that is unfinished now., used to focus on an action that is repeated over a period of time. It often explains how long., Don’t use the it with passive verbs or state verbs,

Present Perfect or continuous

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