SN4 ""

No	Pattern	Freq
1	who have [been] [v-ing]	1024
2	who have been [v-ing]	1024
3	who have be [v-ing]	1024
4	who had [be] [v-ing]	470
5	who has [be] [v-ing]	198
6	who have [be] [v-ing]	169
7	who 's [be] [v-ing]	85
8	who 'd [be] [v-ing]	58
9	who 've [be] [v-ing]	44
10	who have [be] working	39
11	who have [be] doing	33
12	who have [be] watching	33
13	who have [be] living	26
14	who have [be] waiting	25
15	who have [be] missing	23
16	who have [be] playing	22
17	who have [be] looking	22
18	who have [be] sitting	22
19	who have [be] fighting	20
20	who have [be] trying	19
21	who have [be] having	17
22	who have [be] standing	15
23	who have [be] drinking	14
24	who have [be] talking	14
25	who have [be] running	12
26	who have [be] acting	12
27	who have [be] taking	11
28	who have [be] studying	10
29	who have [be] listening	10
30	who have [be] holding	10