| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | years of [verb] [prep] the [adj] | 9 |
|
| 2 | years of [verb] [prep] the [adj] | 9 |
|
| 3 | years of [v-ing] [prep] the [adj] | 9 |
|
| 4 | years of [verb] [prep] the [adj] | 5 |
|
