Auxiliary Engine
What extra function does it add to the event?
含义
A helping element that adds tense, aspect, modality, voice, negation, question formation, or grammatical support to an event.
如何识别
Look for small verbs that do not carry the main event meaning but change how it works.
示例
be|have|do|can|will|must
is going|has eaten|do not know|can swim
She has finished her work.
Visual guide
AUX engine + main event ----------------------- has + finished -> aspect/time is + going -> ongoing can + swim -> possibility main verb = event AUX = how it runs
Function coding choices suffix on verb: walk-ed aux word: has eaten modal aux: can swim support aux: do not know Check: which jobs need AUX?
语言视角
用母语深入讲解
Mandarin does not use auxiliary verbs like English do/be/have, but modal verbs, coverbs, aspect particles, and periphrastic patterns play auxiliary-like roles.
我会开车。
wǒ huì kāichē = I can drive
在所学语言中
英语用助动词构成疑问、否定、强调、时态、进行/完成、被动和情态意义。
Do you understand?
Do 放在句首帮助构成疑问句；understand 才是主要动作。
学习者常漏掉 do-support，误用 be/have，或把多个助动词的顺序放错。
Same block, different coding
Both languages use this block strongly, but they signal it differently. Focus on form changes, not only meaning.