| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [num] years [verb] | 162 |
|
| 2 | for [num] years but | 49 |
|
| 3 | [num] years but [verb] | 34 |
|
| 4 | for [num] but [verb] | 5 |
|
