/ (ɪˈpætjɛf) /
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Vladimir Nikolaievich (ˈvlædɪmɪə ˌnɪkəˈlaɪəvɪtʃ). 1867–1952, US physicist, born in Russia. He discovered the structure of isoprene (1897) and later developed high-octane fuels
QUIZ YOURSELF ON THE 12 TYPES OF VERB TENSES!
Loosen up your grammar muscles because it’s time to test your knowledge on verb tenses!
Question 1 of 6
The verb tenses can be split into which 3 primary categories?
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