1. Have - been doing - have - have been keeping

2. have - been studying - have been studying

3. have - been doing - have been making

Thì Hiện Tại Hoàn Thành Tiếp Diễn:

(+) S + have/has + been + V-ing 

(-) S + have/ has + not + been + V-ing

(?) Have/ Has + S + been + V-ing?

Công thức - hiện tại hoàn thành tiếp diễn

(+) S + has/have + been + Ving

(-) S + has/have + not + been + Ving

(?) Has/Have + S + been + Ving?

DHNB: all the (morning, afternoon,...), all day long, since, for , how long,...

--------------------------------------------------------------------

1. Have / been doing / have / have been keeping 

2. have / been studying / have been studying

3. have / been doing / have been making

`color{orange}{~LeAiFuRuiHuiBao~}`