| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] for a | 487 |
|
| 2 | [v-ing] for a long | 70 |
|
| 3 | [prep] [v-ing] a long | 52 |
|
| 4 | [prep] for a long | 12 |
|
| 5 | [prep] [v-ing] for long | 9 |
|
