| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [adj] [prep] | 126 |
|
| 2 | [conj] it has been [adj] | 90 |
|
| 3 | [conj] has been [adj] [prep] | 79 |
|
| 4 | [conj] it has been [prep] | 73 |
|
