| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] 1989 when [art] [noun sg] | 13 |
|
| 2 | [prep] 1989 when [art] [noun sg] | 13 |
|
| 3 | in 1989 when [art] [noun sg] | 10 |
|
| 4 | in 1989 when [art] [noun sg] | 10 |
|
| 5 | 1989 when [art] [adj] [noun sg] | 5 |
|
| 6 | 1989 when [art] [noun sg] [vb past] | 5 |
|
| 7 | 1989 when [art] [noun sg] [prep] | 5 |
|
| 8 | 1989 when [art] [noun sg] [prep] | 5 |
|
| 9 | 1989 when [art] [noun sg] [verb] | 5 |
|
