| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] thirty years [pers pn] | 8 |
|
| 2 | [prep] thirty years [pers pn] | 8 |
|
| 3 | for thirty years [pers pn] | 7 |
|
| 4 | for thirty years [pers pn] | 7 |
|
| 5 | [adj] thirty years [pers pn] | 5 |
|
| 6 | thirty years [conj] [pers pn] | 12 |
|
| 7 | thirty years [adv] [pers pn] | 11 |
|
| 8 | thirty years [adv] [pers pn] | 11 |
|
| 9 | thirty years [subord] [pers pn] | 9 |
|
| 10 | thirty years ago [pers pn] | 8 |
|
| 11 | thirty years ago [pers pn] | 8 |
|
| 12 | thirty years [pers pn] [verb] | 16 |
|
| 13 | thirty years [pers pn] have | 11 |
|
| 14 | thirty years [pers pn] [vb base] | 8 |
|
| 15 | thirty years [pers pn] [vb past] | 6 |
|
