| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [v-ing] | 6806 |
|
| 2 | [vb base] [v-ing] be | 65 |
|
| 3 | been [v-ing] be | 47 |
|
| 4 | [vb base] been be | 13 |
|
