SN4 ""

No	Pattern	Freq
1	[adj] have been [verb] in	355
2	[adj] have been [vb pp] in	348
3	[det] have been [verb] in	201
4	[adj] has been [verb] in	146
5	this have been [verb] in	102
6	this have been [verb] in	102
7	[num] have been [verb] in	101
8	[adj] had been [verb] in	94
9	[adj] have been [verb] in	79
10	[adj] have been [verb] in	49
11	these have been [verb] in	29
12	these have been [verb] in	29
13	[adj] to have been [verb] in	22
14	[adj] have been done in	18
15	that have been [verb] in	18
16	[adj] have been do in	18
17	that have been [verb] in	18
18	million have been [verb] in	11
19	million have been [verb] in	11
20	much have been [verb] in	10
21	much have been [verb] in	10
22	[adj] have been use in	9
23	[adj] have been used in	9
24	[adj] have been describe in	8
25	[adj] have been described in	8
26	[adj] have been achieved in	8
27	[adj] have been achieve in	8
28	[adj] have been reflected in	7
29	[adj] having been [verb] in	7
30	[adj] have been [v-ing] in	7