| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have been [v-ing] for | 53 |
|
| 2 | must [vb infin] been [v-ing] for | 18 |
|
| 3 | would [vb infin] been [v-ing] for | 14 |
|
| 4 | [vb mod] [vb infin] been looking for | 13 |
|
| 5 | could [vb infin] been [v-ing] for | 10 |
|
