| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have been [v-ing] [prep] | 3341 |
|
| 2 | have been [v-ing] [prep] a | 521 |
|
| 3 | [pron] have been [v-ing] a | 409 |
|
| 4 | [pron] have been [prep] a | 369 |
|
| 5 | [pron] been [v-ing] [prep] a | 8 |
|
