| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pers pn] [modal v] be [verb] | 788 |
|
| 2 | [pron] [pers pn] [modal v] be [v-ing] | 469 |
|
| 3 | [Wh det] [pron] [modal v] be [v-ing] | 334 |
|
| 4 | [Wh det] [pers pn] [modal v] [be] [v-ing] | 330 |
|
