| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] twenty year [pers pn] | 5 |
|
| 2 | [prep] [adv] twenty year [pers pn] | 5 |
|
| 3 | [prep] twenty year [conj] [pers pn] | 8 |
|
| 4 | [prep] twenty year [coord] [pers pn] | 6 |
|
| 5 | [prep] twenty year and [pers pn] | 6 |
|
| 6 | [prep] twenty year and [pers pn] | 6 |
|
| 7 | [prep] twenty year [pers pn] [verb] | 8 |
|
| 8 | [prep] twenty year [pers pn] [vb past] | 6 |
|
