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Keramus Posted 11 years ago
Vocabulary

Act weird/weirdly: behave weird / weirdly [adjective vs adverb]

I'm a little confused. Should we use adjectives or adverbs after behave/act?
Which one is more idiomatic?
To act so weird
To act weirdly

To behave impolite
To behave impolitely

Thank you.
  

Top answer

keramus Should we use adjectives or adverbs after behave/act? One of each! Very often "act" takes an adjective, and "behave" takes an adverb, but "act" can also take an adverb.

  • keramus Should we use adjectives or adverbs after behave/act?
  • One of each!
  • Very often "act" takes an adjective, and "behave" takes an adverb, but "act" can also take an adverb.
  • act weird behave impolitely CJ
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6 Answers
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keramusShould we use adjectives or adverbs after behave/act?
One of each! Very often "act" takes an adjective, and "behave" takes an adverb, but "act" can also take an adverb.

act weird
behave impolitely

CJ
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"To behave impolite" is just wrong. It's ungrammatical and it sounds bad.
"He's behaving impolitely" is correct.
However, "He's acting weird" is what people say. "He's acting weirdly" is OK too, but it's less idiomatic.
I don't know why "weird" behaves weirdly.
Come to think of it "I don't know why 'weird' behaves weird" sounds terrible. It should be "behaves weirdly."
So maybe
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Let me try again. I think "act" and "behave" behave differently.
"Behave" always takes an adverb, I believe. "He behaved bravely." Not "He behaved brave." (That's bad.)
"Act" can take an adverb or an adjective, but they mean different things:
"John is acting brave" means that he is behaving as if he is a brave person. (He may or may not be pretending that he is a brave person.) He seem
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"Act" and "behave" behave differently.
"Behave" always takes an adverb. "He behaved bravely." Not "He behaved brave." (That's bad.)
"Act" can take an adverb or an adjective, but they mean different things:
"John is acting brave" means that he is behaving as if he is a brave person. (He may or may not be pretending that he is a brave person.) He seems brave.
"John is acting bravely"

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