SN4 ""

No	Pattern	Freq
1	have been an [adj]	768
2	has been an [adj]	295
3	had been an [adj]	216
4	have been an [adj]	149
5	have been an important	78
6	have been an important	78
7	to have been an [adj]	39
8	have been an enormous	36
9	have been an enormous	36
10	's been an [adj]	30
11	have been an [adj]	28
12	have been an increasing	25
13	have been an increasing	25
14	have been an awful	21
15	have been an awful	21
16	have been an active	21
17	have been an active	21
18	have been an interesting	14
19	have been an interesting	14
20	have been an excellent	10
21	have been an absolute	10
22	have been an absolute	10
23	have been an excellent	10
24	have been an easy	9
25	have been an early	9
26	have been an additional	9
27	having been an [adj]	9
28	have been an additional	9
29	have been an independent	8
30	have been an independent	8