busy后接不定式還是現在分詞

1. 用作形容詞時，be busy后面習慣上要接現在分詞，不能接不定式。如：

She is busy gathering data. 她正忙著收集數據。

The bee are busy making honey. 蜜蜂正忙于采蜜。

He is busy getting ready for his journey. 他正忙著為旅行作準備。

Farmers were busy getting in the crops. 農民在忙著收莊稼。

I’ve been busy weeding the garden. 我一直在園子里忙著除雜草。

She was busy spinning cotton into thread. 他忙于將棉紡成紗。

She’s busy reviewing her lessons for tomorrow’s exam. 她在忙于復習功課，準備明天的考試。

2. busy用作動詞時，通常用于busy oneself doing sth，其中的現在分詞也不能換成不定式。如：

He busied himself (with) answering letters. 他忙于回信。

He busied himself (in) cooking the dinner. 他忙著做飯。