| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in [adj] when the [noun sg] | 100 |
|
| 2 | in 1990 when [art] [noun sg] | 8 |
|
| 3 | in 1990 when the [noun] | 8 |
|
| 4 | in 1990 [adv] the [noun sg] | 8 |
|
| 5 | [prep] 1990 when the [noun sg] | 6 |
|
| 6 | in 1990 when the [noun sg] | 6 |
|
| 7 | in 1990 [Wh adv] the [noun sg] | 6 |
|
