describing a subject in terms of two qualities that exist at the same time
43.443.2 Indicating that two actions occur at the same time
43.2.1 Focusing on each action separately
(subject) 一边/邊 VP 1 一边/邊 VP 2
(subject) yībiān VP 1 yībiān VP 2
subject does both VP 1 and VP 2 at the same time一边/一邊 yībiān must occur before each verb phrase:我儿子一边听音乐，一边作功课。
我兒子一邊聽音樂，一邊作功課。
Wǒ érzi yìbiān tīng yīnyuè, yìbiān zuò gōngkè.
My son listens to music and does homework at the same time.43.2.2 Focusing on the shared time
(subject) 同时/同時 VP 1 VP 2
(subject) tóngshí VP 1 VP 2
subject simultaneously does VP 1 and VP 2同时/同時 tóngshí occurs before the list of actions that occur at the same time:你为什么同时听音乐作功课？
你為甚麼同時聽音樂作功課？
Nǐ wèi shénme tóngshí tīng yīnyuè zuò gōngkè?
Why do you listen to music and do your homework at the same time?43.3 Indicating that two actions occur in the same time frame
To indicate that two actions occur in the same time frame, though not necessarily at the same
time, say:又 action VP 1 又 action VP 2
yòu VP 1 yòu VP 2
(subject) does both VP 1 and VP 2他特別忙，又念書，又做事。
Tā tèbié máng, yòu niàn shū, yòu zuò shì.
He is really busy. He both studies and has a job.43.4 describing a subject in terms of two qualities that exist
at the same time
(subject) 又 AV/SV 1 又 AV/SV 2
(subject) yòu AV/SV 1 yòu AV/SV 2
(subject) is both AV/SV 1 and AV/SV 2那个男的又高又大。
那個男的又高又大。
Nàge nán de yòu gāo yòu dà.
That guy is both tall and big.C10.8, 40.9