| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] for a | 487 |
|
| 2 | [conj] [v-ing] for a | 284 |
|
| 3 | [prep] [conj] [v-ing] a | 104 |
|
| 4 | [prep] [conj] [v-ing] for | 76 |
|
| 5 | [prep] [conj] for a | 15 |
|
