| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb mod] have been [v-ing] | 620 |
|
| 2 | [pron] [vb mod] have been [det] | 257 |
|
| 3 | [vb mod] have been [v-ing] [det] | 32 |
|
