Phrasal verb is commonly applied to two or three distinct but related constructions in English: a verb and a particle and/or a preposition co-occur forming a single semantic unit. This semantic unit cannot be understood based upon the meanings of the individual parts in isolation, but rather it must be taken as a whole. In other words, the meaning is non-compositional and thus unpredictable.

This application contains 550 frequently used phrasal verbs. These verbs completely cover TOEFL and IELTS exams.
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Used source: englishpage.com