| 释义 | expatiateex‧pa‧ti‧ate /ɪkˈspeɪʃieɪt/ verb    expatiateOrigin:1500-1600 Latin exspatiatus, past paticiple of exspatiari  ‘to wander freely’, from spatium  ‘space’ expatiate on/upon something phrasal verb formal to speak or write in detail about a particular subjectVERB TABLEexpatiate |
 | Present | I, you, we, they | expatiate |  |  | he, she, it | expatiates |  | Past | I, you, he, she, it, we, they | expatiated |  | Present perfect | I, you, we, they | have expatiated |  |  | he, she, it | has expatiated |  | Past perfect | I, you, he, she, it, we, they | had expatiated |  | Future | I, you, he, she, it, we, they | will expatiate |  | Future perfect | I, you, he, she, it, we, they | will have expatiated | 
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 | Present | I | am expatiating |  |  | he, she, it | is expatiating |  |  | you, we, they | are expatiating |  | Past | I, he, she, it | was expatiating |  |  | you, we, they | were expatiating |  | Present perfect | I, you, we, they | have been expatiating |  |  | he, she, it | has been expatiating |  | Past perfect | I, you, he, she, it, we, they | had been expatiating |  | Future | I, you, he, she, it, we, they | will be expatiating |  | Future perfect | I, you, he, she, it, we, they | will have been expatiating | 
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