| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [be] [v-ing] [prep] | 41273 |
|
| 2 | [pron] be [v-ing] [prep] | 41268 |
|
| 3 | [pron] been [verb] [prep] | 303 |
|
| 4 | [pron] [been] [v-ing] [prep] | 146 |
|
