| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] a [adj] | 91 |
|
| 2 | which has been a [adj] | 29 |
|
| 3 | which has been [v-ing] a | 14 |
|
| 4 | which has been [v-ing] [adj] | 13 |
|
