SN4 ""

No	Pattern	Freq
1	have been [adj] [prep] some	144
2	have [been] [adj] [prep] some	140
3	have [been] [adj] for some	101
4	had [been] [adj] [prep] some	44
5	has [been] [adj] [prep] some	42
6	have [been] [adj] [prep] some	29
7	have [been] [adj] [prep] some	22
8	have [been] [adj] in some	21
9	have [been] involved [prep] some	13
10	have [been] involved [prep] some	13
11	have [been] concerned [prep] some	8
12	have [been] available [prep] some	8
13	have [been] available [prep] some	8
14	have [been] concerned [prep] some	8
15	have [been] [adj] with some	7
16	have [been] clear [prep] some	6
17	have [been] ill [prep] some	6
18	have [been] [adj] to some	6
19	have [been] ill [prep] some	6
20	have [been] clear [prep] some	6
21	have [been] responsible [prep] some	5
22	have [been] responsible [prep] some	5