在/正在

zài / zhèng zài

(particle indicating an on-going action)

好久

háo jiǔ

long time

多长

duō cháng       

how long

干

gān     

to do (colloquial)

英语

yīng yǔ       

English

说

shuō   

to speak, to say

听

tīng      

to listen

听见

tīng jiàn      

to hear

写

xiě       

to write

看

kàn      

to look at, to read, to watch

看见

kàn jiàn      

to see

回答

huí dá

to answer

告诉

gào su       

to tell

知道

zhī dào      

to know