| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [adj -er] [conj] a year | 5 |
|
| 2 | for longer [conj] a year | 5 |
|
| 3 | for [adj -er] than a year | 5 |
|
| 4 | for [adj -er] [subord] a year | 5 |
|
| 5 | for [adj -er] than a year | 5 |
|
