SN4 ""

No	Pattern	Freq
1	[pron] have been some	416
2	[ex0] have been some	400
3	there have been some	400
4	there have been some	400
5	[modal v] have been some	104
6	[vb mod] have been some	104
7	must have been some	43
8	must have been some	43
9	[adv] have been some	29
10	[adv] have been some	27
11	may have been some	18
12	may have been some	18
13	might have been some	16
14	might have been some	16
15	[pers pn] have been some	15
16	would have been some	15
17	there have been some	14
18	[noun] have been some	14
19	there have been some	14
20	[verb] have been some	13
21	it have been some	12
22	it have been some	12
23	[vb -s] have been some	12
24	would have been some	12
25	could have been some	9
26	could have been some	9
27	[noun sg] have been some	8
28	seem have been some	8
29	seems have been some	8
30	appear have been some	5