[ Perfect Tenses ]
It is used to make it clear that one event happened before another in the past.
A. present perfect
B. past perfect
C. future perfect

Random Topics:
Perfect Verb TensesTemporal Conjunctions and ConnectivesConditionals / Unreal PastSimple Present vs Present ProgresiveCan/CouldConjunctions and TransitionsPresent Perfect or Past SimpleTime Clauses of FutureLinking Words & PhrasesConnectorsOther quiz:
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Grammar › View
Sanjay gave us _____ unique idea.
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Simple Past or Past Continuous › ViewI _____ (shop) with some friends yesterday, and I _____ (lose) my keys.
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Present Simple & Present Progressive Tense › View
He usually …………………… a taxi to the railway station
A. took
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