| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [prep] twenty year | 9 |
|
| 2 | [verb] [adv] [prep] twenty year | 9 |
|
| 3 | be [adv] [prep] twenty year | 9 |
|
| 4 | [adv] [adv] [prep] twenty year | 5 |
|
| 5 | [adv] [verb] [prep] twenty year | 5 |
|
| 6 | [adv] [prep] twenty [num] year | 6 |
|
| 7 | [adv] [prep] twenty [adj] year | 6 |
|
