1. Have you known - phoned
-> Thì HTHT: Wh- have/has S VPII?
2. Taking - to calculate - will have
-> before + Ving
3. Died - had worked
-> Thì QKHT diễn tả một hành động xảy ra trước hành động khác trong quá khứ
4. Is running - to do
-> S tobe the only one to Vnt
5. Doesn’t feel - playing
-> feel like Ving : cảm thấy thích làm gì
6. Has ever asked - to be
-> consider oneself to Vnt
7. Trying - to repair
-> There’s no point in Ving