| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] be | 11457 |
|
| 2 | it [prep] be | 1760 |
|
| 3 | it [v-ing] [prep] | 644 |
|
| 4 | it [v-ing] be | 20 |
|
