| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at [noun prp] | 1999 |
|
| 2 | [pron] at [noun prp] | 1217 |
|
| 3 | [pron] [v-ing] at | 722 |
|
| 4 | [pron] [v-ing] [noun prp] | 420 |
|
