| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] for a | 487 |
|
| 2 | and [prep] [v-ing] a | 207 |
|
| 3 | and [v-ing] for a | 125 |
|
| 4 | and [prep] [v-ing] for | 72 |
|
