| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [v-ing] for | 714 |
|
| 2 | be [v-ing] for an | 244 |
|
| 3 | [vb mod] be [v-ing] an | 127 |
|
| 4 | [vb mod] be for an | 5 |
|
