| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | she [modal v] have been [v-ing] for | 6 |
|
| 2 | she [vb mod] have been [v-ing] for | 6 |
|
| 3 | she must have been [v-ing] for | 5 |
|
| 4 | she must have been [v-ing] for | 5 |
|
