SN4 ""

No	Pattern	Freq
1	[noun] which have been [verb] in	302
2	[noun sg] which have been [verb] in	170
3	[noun pl] which have been [verb] in	113
4	[prep] which have been [verb] in	32
5	[prep] which have been [verb] in	32
6	of which have been [verb] in	30
7	of which have been [verb] in	30
8	[adj] which have been [verb] in	14
9	[conj] which have been [verb] in	12
10	[coord] which have been [verb] in	12
11	[det] which have been [verb] in	11
12	[noun prp] which have been [verb] in	11
13	and which have been [verb] in	10
14	and which have been [verb] in	10
15	[n mass] which have been [verb] in	8
16	[indef pn] which have been [verb] in	6
17	[pron] which have been [verb] in	6
18	those which have been [verb] in	5
19	[unc] which have been [verb] in	5
20	those which have been [verb] in	5
21	[no cls] which have been [verb] in	5
22	that which have been [verb] in	5
23	that which have been [verb] in	5
24	which [vb mod] have been [verb] in	41
25	which [modal v] have been [verb] in	41
26	which [pron] have been [verb] in	29
27	which [pers pn] have been [verb] in	28
28	which [noun] have been [verb] in	22
29	which would have been [verb] in	11
30	which would have been [verb] in	11