| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] for [pron] | 1997 |
|
| 2 | [vb mod] [be] [v-ing] [pron] | 1971 |
|
| 3 | [vb mod] [be] [v-ing] for | 714 |
|
| 4 | [vb mod] [be] for [pron] | 145 |
|
