SN4 ""

No	Pattern	Freq
1	[noun] who have been [vb pp]	1237
2	[noun sg] who have been [vb pp]	512
3	[noun pl] who have been [vb pp]	495
4	[adj] who have been [vb pp]	169
5	[det] who have been [vb pp]	137
6	[n mass] who have been [vb pp]	133
7	people who have been [vb pp]	130
8	people who have been [vb pp]	130
9	those who have been [vb pp]	124
10	those who have been [vb pp]	124
11	[noun prp] who have been [vb pp]	97
12	man who have been [vb pp]	75
13	[pron] who have been [vb pp]	73
14	[indef pn] who have been [vb pp]	58
15	man who have been [vb pp]	52
16	woman who have been [vb pp]	48
17	child who have been [vb pp]	47
18	children who have been [vb pp]	35
19	[coord] who have been [vb pp]	35
20	[conj] who have been [vb pp]	35
21	person who have been [vb pp]	32
22	patient who have been [vb pp]	28
23	person who have been [vb pp]	27
24	woman who have been [vb pp]	26
25	[num] who have been [vb pp]	26
26	patients who have been [vb pp]	25
27	someone who have been [vb pp]	24
28	someone who have been [vb pp]	24
29	men who have been [vb pp]	23
30	women who have been [vb pp]	22