canは助動詞ですので、疑問文では文頭に持ってきます。
tbd
因為 can 是助動詞，在疑問句中被放到了句首。
'can' is an auxiliary verb, so in question sentences it is brought to the start of the phrase.
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この文は現在完了形です。haveは動詞ではなく、助動詞。
tbd
This sentence is in the present perfect. 'have' is not a verb, but an auxiliary verb.
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