have past participle tense 在 Must have + Past Participle - making deduction about the past 的評價 ... <看更多>
have past participle tense 在 What does 'would have [past participle]' mean in these ... 的評價 The modal verb 'will' has a past form 'would'. It makes possible to construct a grammar with the syntactical meaning of 'past intentions/ ... ... <看更多>
