| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [pron] [v-ing] [prep] a | 72 |
|
| 2 | [pron] [vb past] [pron] [v-ing] at [art] | 26 |
|
| 3 | [pron] [vb past] [pron] [verb] at a | 15 |
|
| 4 | [pron] [verb] [pron] [v-ing] at a | 8 |
|
