SN4 ""

No	Pattern	Freq
1	there have been [noun pl]	434
2	there have been attempts	30
3	there have been attempt	30
4	there have been change	24
5	there have been changes	24
6	there have been case	23
7	there have been cases	23
8	there have been [noun sg]	21
9	there have been occasion	18
10	there have been suggestion	18
11	there have been occasions	18
12	there have been suggestions	18
13	there have been reports	16
14	there have been problems	16
15	there have been report	16
16	there have been problem	16
17	there have been calls	10
18	there have been call	10
19	there have been rumours	10
20	there have been rumour	10
21	there have been complaint	9
22	there have been [n mass]	9
23	there have been complaints	9
24	there have been instance	7
25	there have been signs	7
26	there have been people	7
27	there have been people	7
28	there have been instances	7
29	there have been sign	7
30	there have been study	6