SN4 ""

No	Pattern	Freq
1	there have been concern	14
2	[ex0] have been concern	14
3	there have been concern	14
4	[pron] have been concern	14
5	have been [adj] concern	29
6	have been [adj] concern	20
7	have been [art] concern	10
8	have been [art] concern	10
9	have been [det] concern	9
10	have been some concern	8
11	have been some concern	8
12	have been growing concern	6
13	have been the concern	6
14	have been the concern	6
15	have been growing concern	6
16	have been concern [prep]	8
17	have been concern [prep]	8
18	have been concern [that]	5
19	have been concern that	5
20	have been concern [conj]	5
21	have been concern that	5