| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have not been [adj] | 142 |
|
| 2 | it have not been [adj] | 111 |
|
| 3 | it has not been [adj] | 103 |
|
| 4 | it have n't been [adj] | 51 |
|
| 5 | it had not been [adj] | 48 |
|
| 6 | it have not been possible | 46 |
|
| 7 | it have not been possible | 46 |
|
| 8 | it have not been easy | 33 |
|
| 9 | it have not been easy | 33 |
|
| 10 | it have not been [det] | 16 |
|
| 11 | it 's not been [adj] | 10 |
|
| 12 | it have not been able | 10 |
|
| 13 | it have not been able | 10 |
|
| 14 | it have not been necessary | 8 |
|
| 15 | it have not been necessary | 8 |
|
| 16 | it have not been such | 5 |
|
| 17 | it have not been such | 5 |
|
| 18 | it have not been much | 5 |
|
| 19 | it have not been much | 5 |
|
