We / wait / for ages, We’ve been waiting for ages., How long / you / wait ?, How long have you been waiting?, David / watch TV / all afternoon , David has been watching TV all afternoon. , What / he / do ?, What has he been doing? , Elizabeth / not work / this week , Elizabeth hasn’t been working this week. , My grandparents / not feel well / recently  , My grandparents have not/haven’t been feeling well recently. , How long / you / study English ?, How long have you been studying English? , How long / you use / this book ?, How long have you been using this book?.

Present Perfect Continuous

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