| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] be | 11457 |
|
| 2 | [prep] be for | 212 |
|
| 3 | [v-ing] [prep] for | 68 |
|
| 4 | [v-ing] be for | 17 |
|
