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whether
01
used to talk about a doubt or choice when facing two options
Example
He 's trying to figure out whether he should study abroad or stay in his home country.
I ca n't decide whether to wear a dress or jeans to the event.
I 'm not sure whether I should go to the party or stay home.
02
se, caso
used to show an inquiry; if
03
seja como for, de qualquer forma
in any case
