| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for a [adj] [num] years [prep] | 19 |
|
| 2 | for a far [num] years [prep] | 18 |
|
| 3 | for a further [num] years [prep] | 18 |
|
| 4 | for a [adj -er] [num] years [prep] | 18 |
|
