懂

dǒng   

to understand

看懂

kàn dǒng   

to understand what is read, or watched

听懂

tīng dǒng  

to understand what is listened to

看不懂

kàn bù dǒng   

not understand what is read, or watched

听不懂

tīng bù dǒng  

not understand what is listened to

完

wán     

(a function word showing the result of finishing an action)

看完

kàn wán    

to finish reading, watching, looking at

听完

tīng wán   

to finish listening to

看不完

kàn bù wán     

cannot finish reading, watching, looking at

听不完

tīng bù wán    

cannot finish listening to

吃

chī       

to eat

喝

hē

to drink

吃完

chī wán     

to finish eating

喝完

hē wán     

to finish drinking

吃不完

chī bù wán     

cannot finish eating

喝不完

hē bù wán      

cannot finish drinking