This is the fourth of four tables illustrating which pairings of initials and finals do occur in Mandarin Chinese and, by omission, which do not.

The initial b, for instance, may be paired with a, but not with e, since bais a sound in Mandarin Chinese, whilebe is not.

By the way, don't let the great number of sounds you see represented here alarm you. The majority of these are seldom used.

And in Table 4, as you see below, the possible initial + final pairing are few in number. Which is a good thing, because I think it would actually hurt to say züan orshün.

Table 4: Chinese initials (left) andfinals ü through ün (top). 

ü	üe	üan	ün
b
p
m
f
d
t
n	nü	nüe
l	lü	lüe
z
c
s
zh
ch
sh
r
j	ju	jue	juan	jun
q	qu	que	quan	qun
x	xu	zue	xuan	xun
g
k
h
.	yu	yue	yuan	yun

NOTE
Table 4 finals, when not preceded by an initial, change the üe to y, though the vowel sound does not change.