SN4 ""

No	Pattern	Freq
1	who have been [verb] [conj]	147
2	who have be [vb pp] [conj]	131
3	who have be [verb] [coord]	87
4	who had be [verb] [conj]	74
5	who have be [verb] and	64
6	who have be [verb] and	64
7	who have be [verb] [subord]	50
8	who have be [verb] [conj]	40
9	who have be [verb] as	34
10	who have be [verb] as	34
11	who has be [verb] [conj]	21
12	who have be [verb] or	21
13	who have be [verb] or	21
14	who have be [v-ing] [conj]	16
15	who have be [verb] [that]	10
16	who have be [verb] that	10
17	who have be [verb] that	10
18	who have be [verb] since	7
19	who have be [verb] since	7
20	who have be appoint [conj]	6
21	who have be appointed [conj]	6
22	who have be told [conj]	6
23	who have be tell [conj]	6
24	who have be bear [conj]	5
25	who have be born [conj]	5
26	who have be diagnose [conj]	5
27	who have be arrest [conj]	5
28	who have be killed [conj]	5
29	who 'd be [verb] [conj]	5
30	who have be diagnosed [conj]	5