| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb past] [prep] a | 1476 |
|
| 2 | i [vb past] [v-ing] [prep] | 382 |
|
| 3 | [vb past] [v-ing] [prep] a | 307 |
|
| 4 | i [v-ing] [prep] a | 41 |
|
| 5 | i [vb past] [v-ing] a | 30 |
|
