| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [prep] [pron] [prep] [art] | 453 |
|
| 2 | [be] [v-ing] [prep] [pron] [prep] [art] | 453 |
|
| 3 | be [verb] [prep] [pron] [prep] [art] | 212 |
|
| 4 | [be] [v-ing] [prep] [pron] [prep] [art] | 51 |
|
