SN4 ""

No	Pattern	Freq
1	have been some [noun]	393
2	have [been] some [noun]	393
3	have [been] some [noun sg]	315
4	has [been] some [noun]	140
5	have [been] some [noun]	82
6	had [been] some [noun]	78
7	have [been] some [noun pl]	74
8	have [been] some [noun]	52
9	's [been] some [noun]	21
10	have [been] some sort	19
11	have [been] some sort	19
12	have [been] some kind	13
13	have [been] some kind	13
14	to have [been] some [noun]	12
15	have [been] some improvement	11
16	have [been] some discussion	9
17	have [been] some time	9
18	have [been] some time	9
19	have [been] some discussion	9
20	have [been] some concern	8
21	have [been] some change	8
22	have [been] some concern	8
23	have [been] some debate	7
24	have [been] some improvement	7
25	have [been] some debate	7
26	have [been] some attempt	7
27	have [been] some doubt	7
28	have [been] some mistake	7
29	have [been] some mistake	7
30	have [been] some doubt	7