主句是现在完成时从句用什么时态

Question

如题所述

Answer 1

从句可以是一般过去时，也可以是过去进行时
I have done my work when he was doing his.
当他工作时，我已经完成了我的工作

Answer 2

从句用一般现在时态、现在进行时态

Answer 3

主句现在完成时，从句根据语境该用什么时态就用什么时态。
主句过去完成时，从句用相应的过去时态

Answer 4

我只想引用BBC的几个例子来说明英语时态运用的灵活性，英语语法学习有公式、但千万不要去背公式：
1. The European Union has said Britain can count on its support as it responds to a nerve agent attack on its soil.
2. The UK has said it was highly likely Russia was responsible.
3. The European commissioner Valdensbrofskis said the EU would show solidarity with Britain.