Present Perfect information
- Handbuch zur deutschen Grammatik K.3
-Present Perfect tense of regular verbs.
-about.com on present perfect tense
-College of William and Mary on the present perfect
-Present perfect tense courtesy of the BBC
-USNA on the present perfect tense
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Present Perfect Tense verb quizzes and games
-QUIA strong verbs quiz
-QUIA weak verbs quiz
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