SN4 ""

No	Pattern	Freq
1	an [noun sg] [prep] which [pers pn]	195
2	an [noun] in which [pers pn]	70
3	an [noun] [prep] which he	52
4	an [noun] [prep] which they	35
5	an [noun] [prep] which we	28
6	an [noun] to which [pers pn]	28
7	an [noun] [prep] which i	25
8	an area [prep] which [pers pn]	23
9	an area [prep] which [pers pn]	23
10	an [noun] [prep] which it	21
11	an [noun] [prep] which you	19
12	an [noun] of which [pers pn]	19
13	an issue [prep] which [pers pn]	17
14	an issue [prep] which [pers pn]	17
15	an [noun] [prep] which she	16
16	an [noun] for which [pers pn]	16
17	an [noun] with which [pers pn]	13
18	an [noun] on which [pers pn]	12
19	an [noun] from which [pers pn]	7
20	an incident [prep] which [pers pn]	7
21	an incident [prep] which [pers pn]	7
22	an environment [prep] which [pers pn]	7
23	an [noun] at which [pers pn]	7
24	an age [prep] which [pers pn]	7
25	an age [prep] which [pers pn]	7
26	an environment [prep] which [pers pn]	7
27	an atmosphere [prep] which [pers pn]	6
28	an atmosphere [prep] which [pers pn]	6
29	an [noun] over which [pers pn]	5
30	an experience [prep] which [pers pn]	5