SN4 ""

No	Pattern	Freq
1	have been [to-vb] the [adj]	46
2	[verb] been [to-vb] the [adj]	46
3	[vb -s] been [to-vb] the [adj]	30
4	has been [to-vb] the [adj]	30
5	had been [to-vb] the [adj]	10
6	[vb past] been [to-vb] the [adj]	10
7	been [verb] [to-vb] the [adj]	253
8	been [vb pp] [to-vb] the [adj]	231
9	been [adj] [to-vb] the [adj]	129
10	been [adj] [to-vb] the [adj]	123
11	been able [to-vb] the [adj]	42
12	been able [to-vb] the [adj]	42
13	been made [to-vb] the [adj]	27
14	been make [to-vb] the [adj]	27
15	been [v-ing] [to-vb] the [adj]	22
16	been used [to-vb] the [adj]	22
17	been use [to-vb] the [adj]	22
18	been unable [to-vb] the [adj]	18
19	been unable [to-vb] the [adj]	18
20	been trying [to-vb] the [adj]	11
21	been try [to-vb] the [adj]	11
22	been designed [to-vb] the [adj]	10
23	been design [to-vb] the [adj]	10
24	been show [to-vb] the [adj]	10
25	been shown [to-vb] the [adj]	10
26	been possible [to-vb] the [adj]	8
27	been possible [to-vb] the [adj]	8
28	been force [to-vb] the [adj]	7
29	been forced [to-vb] the [adj]	7
30	been do [to-vb] the [adj]	6