| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a | 232867 |
|
| 2 | [v-ing] [prep] a | 27362 |
|
| 3 | [v-ing] [noun sg] [prep] | 26365 |
|
| 4 | [v-ing] [noun sg] a | 136 |
|
