| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] to be [v-ing] | 845 |
|
| 2 | to be [v-ing] at | 211 |
|
| 3 | [vb -s] to be at | 92 |
|
| 4 | [vb -s] be [v-ing] at | 89 |
|
