| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [modal v] [be] [v-ing] for | 393 |
|
| 2 | [Wh adv] [pron] [modal v] [be] [v-ing] | 151 |
|
| 3 | [Wh adv] [pron] [be] [v-ing] for | 67 |
|
