Direction + perspective — 来 toward me, 去 away from me
English packs direction and perspective into separate words: 'come in' vs. 'go in', 'bring' vs. 'take'. Mandarin builds these from a small set of direction verbs (进 enter, 出 exit, 上 up, 下 down, 回 back, 过 across) plus one of two perspective markers — 来 lái (toward the speaker) or 去 qù (away from the speaker). The combinations are everywhere: 进来 (come in), 出去 (go out), 上来 (come up), 下去 (go down), 回来 (come back), 过来 (come over). The key rule is that 来 vs. 去 is decided ENTIRELY by where the speaker is. If they're walking toward you, it's 过来; if they're walking away, it's 过去 — even though the action is the same.
The direction-verbs and the two perspectives
Six core direction roots: 进 (enter), 出 (exit), 上 (go up), 下 (go down), 回 (return), 过 (cross / pass over). Glue 来 on the end if the motion is TOWARD the speaker, 去 if it's AWAY. So you get pairs: 进来 (come in) / 进去 (go in); 出来 (come out) / 出去 (go out); 上来 (come up) / 上去 (go up); 下来 (come down) / 下去 (go down); 回来 (come back) / 回去 (go back); 过来 (come over) / 过去 (go over). The same physical act gets labeled differently depending on where the speaker stands. 请进来。 = Please come in (said from inside). 他进去了。 = He went in (said from outside).
Stuck onto another verb — 走进来, 跑出去
The real power of these complements is sticking them onto a main verb of motion. Pattern: main verb + direction + 来/去. 走进来 = walk in (toward me). 跑出去 = run out (away from me). 跳下来 = jump down (toward me). 拿出来 = take out (toward me) / pull out and bring it here. 搬上去 = carry it up (away from me). The main verb tells you HOW the motion happens; the directional complement tells you WHICH way and WHOSE perspective. 小狗跑进来了。 = The puppy ran in (here, toward me). 小狗跑出去了。 = The puppy ran out (away from me). With an object, the noun usually slots BETWEEN the direction and 来/去: 拿出一本书来 = take out a book (and bring it here). For simple cases just put the object after the whole compound: 他走进来了房间。 is also fine in casual speech.
拿来 vs. 拿去 — bring vs. take
English 'bring' = move it toward me; 'take' = move it away from me. Mandarin uses the same logic with 拿 (hold/carry): 拿来 = bring (here), 拿去 = take (there). 请把书拿来。 = Please bring the book (here). 请把书拿去。 = Please take the book (there). The same pattern works with other verbs: 送来 (send / deliver here), 送去 (send / deliver there), 带来 (bring along), 带去 (take along). Memorize the pair as a unit — picking the right one is one of the most native-sounding things you can do early.
The speaker-perspective rule — and what counts as 'here'
Whenever you're choosing between 来 and 去, ask: from where I'm standing right now (or where I'm imagining myself), is the motion getting CLOSER or FURTHER? Closer → 来. Further → 去. This sometimes flips with the same physical motion. You're at home and your friend says she's walking toward your house: she says 我过来。 but you'd narrate it from her side as 她过来了 because you're the destination. If you're at her place waiting and she's still on her way to YOUR house, you'd say 她回去了 ('she went back' — away from where you are). When in doubt, anchor on the speaker.
Past and progressive — sticking 了 on the end
These compounds behave like normal verbs for tense. Completed action: add 了 at the end. 他进来了。 = He came in. 小猫跳上去了。 = The kitten jumped up (away from me). 我回来了。 = I'm back / I've come back. The standard 'I'm home!' shout when you walk in the door is just 我回来了! Negation works the same as lesson 11 — past failure uses 没: 他没进来。 = He didn't come in. For potential / ability (lesson 17 style), insert 得 or 不: 走得进去 = can walk in, 走不进去 = can't walk in (something blocks you).
