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  • 7/24/2019 Pastand Present Perfect

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Present Perfect for & since Present Perfect vs. Simple Past

Present perfect & perfect continous

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Present perfect simple or present perfect continuous

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Present Perfect vs. Present Perfect Continuous Tense

ALCOA AND DATA INTEGRITY: PASTAND FUTURE

Present Perfect and Present Perfect Continuous

Simple Past, Present Perfect; Present Perfect Progressive

Present Perfect and Present Perfect Progressive Unit 3

Present perfect vs present perfect continuous

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Present Perfect vs. Present Tense Present Perfect …...Present Perfect vs. Present Tense Present Perfect vs. Past Tense Since/For 51 1. astronaut 2. cashier 3. clerk 4. computer programmer