| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must have been [v-ing] | 186 |
|
| 2 | she [vb mod] have been [v-ing] | 81 |
|
| 3 | she [modal v] have been [v-ing] | 81 |
|
| 4 | she must have been [verb] | 49 |
|
| 5 | she must have [been] [v-ing] | 30 |
|
| 6 | she must have be [v-ing] | 30 |
|
| 7 | she must have [be] [v-ing] | 30 |
|
| 8 | she must [verb] been [v-ing] | 30 |
|
| 9 | she must have been [v-ing] | 30 |
|
