| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] a [adj] | 9420 |
|
| 2 | [prep] [v-ing] [art] first | 278 |
|
| 3 | [prep] [v-ing] a [num ord] | 127 |
|
| 4 | [prep] [v-ing] a first | 16 |
|
| 5 | [prep] [verb] a first | 16 |
|
