SN4 ""

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