SN4 ""

No	Pattern	Freq
1	have been [det] [noun sg] in	108
2	have been some [noun] in	64
3	has been [det] [noun] in	61
4	have been [det] [noun pl] in	49
5	have been [det] [noun] in	38
6	had been [det] [noun] in	30
7	have been little [noun] in	23
8	have been [det] change in	22
9	have been many [noun] in	19
10	have been [det] [noun] in	18
11	have been any [noun] in	17
12	have been several [noun] in	12
13	have been [det] changes in	11
14	have been [det] change in	11
15	have been much [noun] in	10
16	have been [det] improvement in	9
17	have been [det] increase in	6
18	have been [det] increase in	6
19	's been [det] [noun] in	5
20	have been [det] growth in	5
21	have been [det] improvement in	5
22	have been [det] point in	5
23	have been few [noun] in	5
24	have been [det] growth in	5
25	have been [det] point in	5
26	to have been [det] [noun] in	5