Subject + 坐 + 在 + Location
The verb 坐 (zuò) means 'to sit' or 'to take a seat' and is one of the most common posture verbs in Chinese. It can also mean 'to travel by' a mode of transportation, as in 坐飞机 (take a plane). It is often followed by 在 plus a location to indicate where someone is sitting.
请坐,不要站着说话。
qǐng zuò, bùyào zhàn zhe shuōhuà.
Please sit down; don't talk standing up.
我们坐地铁去吧,比开车快。
wǒmen zuò dìtiě qù ba, bǐ kāichē kuài.
Let's take the subway; it's faster than driving.
她喜欢坐在窗户旁边看书。
tā xǐhuān zuò zài chuānghu pángbiān kàn shū.
She likes sitting by the window to read.