「为了」 "wèile"
「为了」（"wèile"）means “为了: in order to / for the sake of (states the purpose)”. 为了 introduces the purpose or goal of an action. Formation: 为了 + 目的（名词/动词短语），+ 主语 + 谓语
为了: in order to / for the sake of (states the purpose)
HSK3Formation
为了 + 目的（名词/动词短语），+ 主语 + 谓语
Explanation
为了 introduces the purpose or goal of an action. It usually opens the sentence: '为了 + purpose, subject + action'. The purpose can be a noun (为了健康) or a verb phrase (为了学好中文). It answers 'for what?' Unlike 因为 (which gives a reason/cause), 为了 gives an aim you act toward.
Examples
Note
为了 = purpose/goal (looking forward); 因为 = reason/cause (looking back). Don't confuse them.
FAQ
「为了」 — what does it mean and how is it used?
为了: in order to / for the sake of (states the purpose). 为了 introduces the purpose or goal of an action. It usually opens the sentence: '为了 + purpose, subject + action'. The purpose can be a noun (为了健康) or a verb phrase (为了学好中文). It answers 'for what?' Unlike 因为 (which gives a reason/cause), 为了 gives an aim you act toward.
「为了」 — how do you form it?
为了 + 目的（名词/动词短语），+ 主语 + 谓语
「为了」 — any usage notes?
为了 = purpose/goal (looking forward); 因为 = reason/cause (looking back). Don't confuse them.