| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] it for [adj] year | 18 |
|
| 2 | [v-ing] it for [adj] years | 15 |
|
| 3 | [v-ing] it for [num] year | 14 |
|
| 4 | doing it for [adj] year | 7 |
|
