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Hello! I am a student of Applied English looking for someone who can help me for English!! [emoji]
Mar 4, 2018 6:36 PM
Comments · 4

A verb-preposition combination becomes a "phrasal verb" when the combination creates a different meaning together than when those same words are used separately.  In your second example, "looked up" means "search" not to literally look up (wards,) as in toward the sky.  In the first example she literally looked back, as in behind her: therefore, it is not a phrasal verb.  I hope this helps.  Ask me if you have further questions.

March 4, 2018

Hi ioletta, you will need a proffesor of English language to answer that question. Native speakers are not worried about phrasal verbs. To ask this question suggests you have a good level english. Best of luck!

March 4, 2018
I can help. I am a native English speaker.  Give me your question and I'll do my best :)
March 4, 2018
She looked back and said bye. 
Why in this sentence looked back is not a phrasal verb. In contrats, the following sentence looked up is a phrasal verb. 
She looked up a word in the dictionary. 
Although both of them have verb and preposition ??? 

March 4, 2018
Language Skills
Arabic (Levantine), English, Spanish, Turkish
Learning Language
English, Spanish, Turkish