I'm not sure if Ken's adaptable enough to take a job abroad.

sania-baharat

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Jul 10, 2017
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Urdu
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Pakistan
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Iran
Are these two sentences OK?

I'm not sure (that) Ken's adaptable enough to take a job abroad.
I'm not sure if Ken's adaptable enough to take a job abroad.
 

GoesStation

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Dec 22, 2015
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All three possibilities are okay. I prefer whether in the sentence with if.
 
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