| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has been [art] [adj] | 198 |
|
| 2 | has been [v-ing] [art] [adj] | 158 |
|
| 3 | it has been [v-ing] [art] | 10 |
|
| 4 | it has been [v-ing] [adj] | 5 |
|
