作者：Alejandro ANCO 2 年以前
120
PRESENT PERFECT CONTINOUS
The present perfect continuous tense is used for actions that began in the past and continue into the present or have recently concluded. Key phrases such as "since," "for," "every night,"
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PRESENT PERFECT CONTINOUS STRUCTURE (=) Yes, (I/You/He/She/It/We/They) - have/has; No, (I/You/He/She/It/We/They) - haven't/hasn't. (?) Have/Has - subject - been - verb (ing) - complement ? (-) Subject - haven't/hasn't - been - verb (ing) - complement. (+) Subject - have/has - been - verb (ing) - complement SIGNAL WORDS every night, every day since, for How long EXAMPLES (=) Yes, he has (?) Has he been living on the next door since 1999? (-) You haven't been studying for the final exams. (+) I have been working here since 2011. USES Express an action that started in the past and is still going on in the present.
Express an action that started in the past and has just finished.
