So you have to pack in 40,000 words into 400 possibles sounds. It makes it so that certain sounds have 50 different characters to write them. It also has a hard time absorbing loan words compared to languages like French or Japanese.
a, ai, an, ang, ao
ba, bai, ban, bang, bao, bei, ben, beng, bi, bian, biao, bie, bin, bing, bo, bu
ca, cai, can, cang, cao, ce, cei, cen, ceng, cha, chai, chan, chang, chao, che, chen, cheng, chi, chong, chou, chu, chua, chuai, chuan, chuang, chui, chun, chuo, ci, cong, cou, cu, cuan, cui, cun, cuo
da, dai, dan, dang, dao, de, dei, den, deng, di, dian, diao, die, ding, diu, dong, dou, du, duan, dui, dun, duo
e, ê, ei, en, er
fa, fan, fang, fei, fen, feng, fo, fou, fu
ga, gai, gan, gang, gao, ge, gei, gen, geng, gong, gou, gu, gua, guai, guan, guang, gui, gun, guo
ha, hai, han, hang, hao, he, hei, hen, heng, hm, hng, hong, hou, hu, hua, huai, huan, huang, hui, hun, huo
ji, jia, jian, jiang, jiao, jie, jin, jing, jiong, jiu, ju, juan, jue, jun
ka, kai, kan, kang, kao, ke, kei, ken, keng, kong, kou, ku, kua, kuai, kuan, kuang, kui, kun, kuo
la, lai, lan, lang, lao, le, lei, leng, li, lia, lian, liang, liao, lie, lin, ling, liu, long, lou, lu, luo, luan, lun, lü, lüe
m, ma, mai, man, mang, mao, mei, men, meng, mi, mian, miao, mie, min, ming, miu, mo, mou, mu
n, na, nai, nan, nang, nao, ne, nei, nen, neng, ng, ni, nian, niang, niao, nie, nin, ning, niu, nong, nou, nu, nuo, nuan, nü, nüe
o, ou
pa, pai, pan, pang, pao, pei, pen, peng, pi, pian, piao, pie, pin, ping, po, pou, pu
qi, qia, qian, qiang, qiao, qie, qin, qing, qiong, qiu, qu, quan, que, qun
ran, rang, rao, re, ren, reng, ri, rong, rou, ru, rua, ruan, rui, run, ruo
sa, sai, san, sang, sao, se, sei, sen, seng, sha, shai, shan, shang, shao, she, shei, shen, sheng, shi, shou, shu, shua, shuai, shuan, shuang, shui, shun, shuo, si, song, sou, su, suan, sui, sun, suo
ta, tai, tan, tang, tao, te, teng, ti, tian, tiao, tie, ting, tong, tou, tu, tuan, tui, tun, tuo
wa, wai, wan, wang, wei, wen, weng, wo, wu
xi, xia, xian, xiang, xiao, xie, xin, xing, xiong, xiu, xu, xuan, xue, xun
ya, yan, yang, yao, ye, yi, yin, ying, yong, you, yu, yuan, yue, yun
za, zai, zan, zang, zao, ze, zei, zen, zeng, zha, zhai, zhan, zhang, zhao, zhe, zhei, zhen, zheng, zhi, zhong, zhou, zhu, zhua, zhuai, zhuan, zhuang, zhui, zhun, zhuo, zi, zong, zou, zu, zuan, zui, zun, zuo
ba, bai, ban, bang, bao, bei, ben, beng, bi, bian, biao, bie, bin, bing, bo, bu
ca, cai, can, cang, cao, ce, cei, cen, ceng, cha, chai, chan, chang, chao, che, chen, cheng, chi, chong, chou, chu, chua, chuai, chuan, chuang, chui, chun, chuo, ci, cong, cou, cu, cuan, cui, cun, cuo
da, dai, dan, dang, dao, de, dei, den, deng, di, dian, diao, die, ding, diu, dong, dou, du, duan, dui, dun, duo
e, ê, ei, en, er
fa, fan, fang, fei, fen, feng, fo, fou, fu
ga, gai, gan, gang, gao, ge, gei, gen, geng, gong, gou, gu, gua, guai, guan, guang, gui, gun, guo
ha, hai, han, hang, hao, he, hei, hen, heng, hm, hng, hong, hou, hu, hua, huai, huan, huang, hui, hun, huo
ji, jia, jian, jiang, jiao, jie, jin, jing, jiong, jiu, ju, juan, jue, jun
ka, kai, kan, kang, kao, ke, kei, ken, keng, kong, kou, ku, kua, kuai, kuan, kuang, kui, kun, kuo
la, lai, lan, lang, lao, le, lei, leng, li, lia, lian, liang, liao, lie, lin, ling, liu, long, lou, lu, luo, luan, lun, lü, lüe
m, ma, mai, man, mang, mao, mei, men, meng, mi, mian, miao, mie, min, ming, miu, mo, mou, mu
n, na, nai, nan, nang, nao, ne, nei, nen, neng, ng, ni, nian, niang, niao, nie, nin, ning, niu, nong, nou, nu, nuo, nuan, nü, nüe
o, ou
pa, pai, pan, pang, pao, pei, pen, peng, pi, pian, piao, pie, pin, ping, po, pou, pu
qi, qia, qian, qiang, qiao, qie, qin, qing, qiong, qiu, qu, quan, que, qun
ran, rang, rao, re, ren, reng, ri, rong, rou, ru, rua, ruan, rui, run, ruo
sa, sai, san, sang, sao, se, sei, sen, seng, sha, shai, shan, shang, shao, she, shei, shen, sheng, shi, shou, shu, shua, shuai, shuan, shuang, shui, shun, shuo, si, song, sou, su, suan, sui, sun, suo
ta, tai, tan, tang, tao, te, teng, ti, tian, tiao, tie, ting, tong, tou, tu, tuan, tui, tun, tuo
wa, wai, wan, wang, wei, wen, weng, wo, wu
xi, xia, xian, xiang, xiao, xie, xin, xing, xiong, xiu, xu, xuan, xue, xun
ya, yan, yang, yao, ye, yi, yin, ying, yong, you, yu, yuan, yue, yun
za, zai, zan, zang, zao, ze, zei, zen, zeng, zha, zhai, zhan, zhang, zhao, zhe, zhei, zhen, zheng, zhi, zhong, zhou, zhu, zhua, zhuai, zhuan, zhuang, zhui, zhun, zhuo, zi, zong, zou, zu, zuan, zui, zun, zuo
Syllables spelled with "u", but pronounced with "ü":
ju, juan, jue, jun
qu, quan, que, qun
xu, xuan, xue, xun
yu, yuan, yue, yun
qu, quan, que, qun
xu, xuan, xue, xun
yu, yuan, yue, yun
Syllables where "u" and "ü" must not be mixed up:
lu, lü, lüe
nu, nü, nüe
nu, nü, nüe
Those are every possible Chinese spoken sound.
Notice, no "th" "tr" "sl" "sk" .... consonant clusters are rare ans other languages use them a lot.