SN4 ""

No	Pattern	Freq
1	have been [det] [adj]	148
2	have been some [adj]	130
3	has been [det] [adj]	107
4	had been [det] [adj]	78
5	have been [det] [adj]	70
6	have been that [adj]	46
7	have been any [adj]	44
8	have been many [adj]	44
9	have been little [adj]	41
10	have been several [adj]	41
11	have been much [adj]	29
12	have been [det] other	23
13	to have been [det] [adj]	22
14	have been another [adj]	20
15	have been few [adj]	18
16	's been [det] [adj]	14
17	have been [det] recent	13
18	have been [det] good	13
19	have been such [adj]	12
20	have been [det] new	11
21	've been [det] [adj]	11
22	have been more [adj]	10
23	have been [det] major	9
24	have been [det] serious	9
25	have been [det] different	8
26	have been [det] significant	8
27	have been [det] interesting	6
28	have been [det] important	5
29	have been [det] systematic	5
30	have been [det] minor	5