刚才
gāng cái
Expressing "just now" with "gangcai"
刚才 is a time word meaning "a moment ago" — it points at a stretch of time just past.
刚才 + Verb Phrase
How it works
你刚才说什么了? — what did you just say? 刚才 behaves like 昨天 or 今天: it can move to the front of the sentence or sit after the subject.
That flexibility is what separates it from 刚, which is an adverb and must stay directly in front of the verb.
Examples
nǐ gāng cái shuō shén me le?
你刚才说什么了？
What did you say just now?
gāng cái yǒu rén zhǎo nǐ
刚才有人找你。
Someone was looking for you a moment ago.
tā gāng cái hái zài zhèr
他刚才还在这儿。
He was here a minute ago.