| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [adj] [to-vb] | 160 |
|
| 2 | it has been [adj] [to-vb] | 159 |
|
| 3 | it has been [verb] [to-vb] | 105 |
|
| 4 | it has been [vb pp] [to-vb] | 101 |
|
| 5 | it has been possible [to-vb] | 49 |
|
| 6 | it has been possible [to-vb] | 49 |
|
| 7 | it has been necessary [to-vb] | 21 |
|
| 8 | it has been necessary [to-vb] | 21 |
|
| 9 | it has been decide [to-vb] | 20 |
|
| 10 | it has been decided [to-vb] | 20 |
|
| 11 | it has been able [to-vb] | 18 |
|
| 12 | it has been able [to-vb] | 18 |
|
| 13 | it has been difficult [to-vb] | 16 |
|
| 14 | it has been difficult [to-vb] | 16 |
|
| 15 | it has been design [to-vb] | 14 |
|
| 16 | it has been designed [to-vb] | 14 |
|
| 17 | it has been use [to-vb] | 13 |
|
| 18 | it has been impossible [to-vb] | 12 |
|
| 19 | it has been used [to-vb] | 12 |
|
| 20 | it has been impossible [to-vb] | 12 |
|
| 21 | it has been shown [to-vb] | 8 |
|
| 22 | it has been show [to-vb] | 8 |
|
| 23 | it has been unable [to-vb] | 7 |
|
| 24 | it has been unable [to-vb] | 7 |
|
| 25 | it has been known [to-vb] | 6 |
|
| 26 | it has been know [to-vb] | 6 |
|
| 27 | it has been hard [to-vb] | 5 |
|
| 28 | it has been hard [to-vb] | 5 |
|
| 29 | it has been forced [to-vb] | 5 |
|
| 30 | it has been force [to-vb] | 5 |
|
