「快要…了」（将要） "kuài yào … le"
「快要…了」（将要）（"kuài yào … le"）means “快要…了: about to happen very soon”. 快要 + … + 了 says something is about to happen very soon: 快要下雨了 'it's about to rain'. Formation: 快要 + 动词/形容词 + 了（马上就要发生）
快要…了: about to happen very soon
HSK2Formation
快要 + 动词/形容词 + 了（马上就要发生）
Explanation
快要 + … + 了 says something is about to happen very soon: 快要下雨了 'it's about to rain'. The 了 at the end is required. 快/就 can replace 快要 (快…了, 就要…了); 就要…了 can take a time word, 快要…了 usually can't.
Examples
Note
The final 了 is required. 就要…了 can take a time word; 快要…了 usually can't.
FAQ
「快要…了」（将要） — what does it mean and how is it used?
快要…了: about to happen very soon. 快要 + … + 了 says something is about to happen very soon: 快要下雨了 'it's about to rain'. The 了 at the end is required. 快/就 can replace 快要 (快…了, 就要…了); 就要…了 can take a time word, 快要…了 usually can't.
「快要…了」（将要） — how do you form it?
快要 + 动词/形容词 + 了（马上就要发生）
「快要…了」（将要） — any usage notes?
The final 了 is required. 就要…了 can take a time word; 快要…了 usually can't.