| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] for [num] years | 108 |
|
| 2 | [verb] for a [num] years | 27 |
|
| 3 | [adv] [verb] for a [num] | 26 |
|
| 4 | [adv] for a [num] years | 12 |
|
| 5 | [adv] [verb] a [num] years | 8 |
|
