| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have been [v-ing] for | 15 |
|
| 2 | [pers pn] must have been [v-ing] for | 15 |
|
| 3 | she must have been [v-ing] [prep] | 14 |
|
| 4 | she must have been [v-ing] [prep] | 14 |
|
| 5 | she [modal v] have been [v-ing] for | 6 |
|
| 6 | she must [verb] been [v-ing] for | 5 |
|
| 7 | she must have been [verb] for | 5 |
|
| 8 | she must have been [v-ing] for | 5 |
|
| 9 | she must have [be] [v-ing] for | 5 |
|
| 10 | she must have be [v-ing] for | 5 |
|
| 11 | she must have [been] [v-ing] for | 5 |
|
| 12 | she must have been [v-ing] for | 5 |
|
