| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] must [verb] [been] [v-ing] [prep] | 57 |
|
| 2 | [pers pn] must [verb] [been] [v-ing] [prep] | 56 |
|
| 3 | she [modal v] [verb] [been] [v-ing] [prep] | 26 |
|
| 4 | she must [verb] [been] [verb] [prep] | 21 |
|
| 5 | she must [verb] [been] [v-ing] [prep] | 14 |
|
| 6 | she must [verb] [been] [v-ing] [prep] | 14 |
|
| 7 | she must [verb] [be] [v-ing] [prep] | 14 |
|
