| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] be [v-ing] for | 721 |
|
| 2 | be [v-ing] for an | 244 |
|
| 3 | [noun pl] be [v-ing] an | 148 |
|
| 4 | [noun pl] [v-ing] for an | 43 |
|
