SN4 ""

No	Pattern	Freq
1	have been some [noun sg]	315
2	has been some [noun]	140
3	have been some [noun]	82
4	had been some [noun]	78
5	have been some [noun pl]	74
6	have been some [noun]	52
7	's been some [noun]	21
8	have been some sort	19
9	have been some sort	19
10	have been some kind	13
11	have been some kind	13
12	to have been some [noun]	12
13	have been some improvement	11
14	have been some discussion	9
15	have been some discussion	9
16	have been some time	9
17	have been some time	9
18	have been some change	8
19	have been some concern	8
20	have been some concern	8
21	have been some mistake	7
22	have been some attempt	7
23	have been some mistake	7
24	have been some doubt	7
25	have been some doubt	7
26	have been some improvement	7
27	have been some debate	7
28	have been some debate	7
29	have been some disagreement	6
30	'd been some [noun]	6