How to say "你怎么知道他是正人君子" (nǐ zěn me zhī dào tā shì zhèng rén jūn zǐ) in Chinese dialogue

zěnmezhīdàoshìzhèngrénjūn

How do you know he was a proper gentleman?

Idioms & Colloquial Expressions
Grammar Patterns
INTERACTIVE SCRIPT TIMELINE
LINE 0123:00
yǒu
zhī
qīn
ne

have any improper contact with me?

LINE 0223:03
PLAYING SCENE
zěn
me
zhī
dào
shì
zhèng
rén
jūn

How do you know he was a proper gentleman?

LINE 0323:05
shì
shuō
shú
ma

Didn't you say you didn't know him?

Show Information
Source MediaTV Series
Season & EpisodeS2 E6
Timestamp23:03
TMDB ID124595