The English term "call on" matches the Chinese term "kàn"

other english words that include "on" : chinese :
Hongkong Xiângg ng
Indonesia Yìndùníxîyà, Yìnní
Lisbon L sîbevn
London Lúndùn
Monaco Mónàgê
Monday l bàiyî, xîngqîyî
United Nations Liánhéguó
aberration cuò, cuòwù
administration zhèngf
affection ài
alongside pángbiân
among l tou
balcony lùtái, yángtái
bone gútou, g tou
bronze qîngtóng
button kòuzi, ni kòu
calculation zhàngdân
coconut yézi
concert yînyuèhuì
connect b ng
construct gài, jiàn
consulate l ngshìgu n
continent dàlù, zhôu, dàzhôu
conversation huìhuà
cushion diànzi, y diàn
declaration of policy jiémù
diamond zhuànshí
dictionary cídi n, zìdi n
donkey lü`, lü`zi
don’t mention it bié kèqi, bú kèqi, búyòng kèqi
economics jîngjìxué
economy jîngjì
every one dàjiâ, rénrén
flash on zháohu
flat-iron yùnd u
grandson sûnzi
have compassion on kevlián
injection d zhên
intention mùdì, yòngyì
international guójì
in front of qiántou
iron tiev, yùnd u
jawbone è, xià’è
lemon níngméng
lesson
lion shîzi
lonely jìmò, jímò
long cháng
mason qìzhuân gôngrén
million yìb iwàn
money qián
monk héshàng, xiûdàoshì, xiûshì
monkey hóuzi
moon yuè, yuèliàng
motion picture diàny ng
nylon nílóng
one m u, yî
one hundred yìb i
one thousand yìqiân
onion yángcông
opinion yìjiàn
pardon ráoshù, yuánliàng
pigeon gêzi
pigeonhole kê, kêmù
police-station gông’ânjú, j ngchájú
pond chízi
prison jiânyù
prisoner fànrén
profession zhíyè
pronunciation fâyîn
put on weight pàngle
question wèntí
rainy season y jì
region dìqû
religion zôngjiào
respond huídá
revolution gémìng
season jì, jìjié
section kê, kêmù
someone m u
some one m u
son érzi
so long zàijiàn
spoon sháo, sháozi
station hu chêzhàn
stone tou, shítou
strong drink ji
surgeon wàikêyîshêng
telephone d diànhuà, diànhuà
that one nà, nèi
that one over there nà, nèi
ton gôngdûn
tongue shétou, y yán
tradition chuánt ng
traditional chuánt ngde
twenty-one èrshiyî
water-melon xîguâ
Chinese Writing is Complicated and Ancient
Writing in Chinese is very difficult to master because there is no such thing as an alphabet in the language. Instead, it employs a system of 20,000 characters. To make learning them easier, they can be translated into Roman characters using pinyin. The writing system itself is also one of the oldest in the world. Chinese characters were found on animal bones in 1600 BC. The Latin alphabet wasn’t invented until 1000BC.
Watch Your Tone
Chinese is a tonal language so the tone used while speaking makes the words mean different things. Mixing up the rising or falling pitch of words will make something like “I want to ask you” into “I want to kiss you.” So it’s important to get those inflections down in order to avoid making an embarrassing mistake.
Grammar Tenses
Chinese does not have any grammatical tenses in it. But it does have other complexities that aren’t present in other European languages, such as a system of suffixes and the relevancy of occurrences.