| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] a [adj] | 26070 |
|
| 2 | been a [adj] | 5181 |
|
| 3 | been [v-ing] a | 862 |
|
| 4 | been [v-ing] [adj] | 715 |
|
