| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the first time [prep] 20 years | 11 |
|
| 2 | the first time [prep] 20 [noun pl] | 11 |
|
| 3 | the first time [prep] 20 [noun pl] | 11 |
|
| 4 | the first time in 20 [noun pl] | 9 |
|
| 5 | the first time in 20 [noun pl] | 9 |
|
