| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [v-ing] [prep] [pron] | 230 |
|
| 2 | be all [v-ing] [prep] [pron] | 59 |
|
| 3 | it be all [prep] [pron] | 48 |
|
| 4 | it be all [v-ing] [prep] | 39 |
|
