| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] [adv] eight years | 15 |
|
| 2 | [noun sg] [prep] [adv] eight years | 13 |
|
| 3 | [prep] [adv] than eight years | 8 |
|
| 4 | [prep] [adv] [subord] eight years | 8 |
|
| 5 | [prep] [adv] than eight years | 8 |
|
| 6 | [prep] [adv] [conj] eight years | 8 |
|
| 7 | [prep] [adv] eight years [conj] | 6 |
|
