| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in 1990 [adv] [pers pn] | 9 |
|
| 2 | in 1990 [Wh adv] [pers pn] | 9 |
|
| 3 | in 1990 when [pers pn] | 9 |
|
| 4 | in 1990 when [pers pn] | 9 |
|
| 5 | in 1990 [adv] he | 6 |
|
