| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [prep] year | 140 |
|
| 2 | [v-ing] for year | 112 |
|
| 3 | [v-ing] [prep] for | 60 |
|
| 4 | [prep] for year | 17 |
|
