| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in 1986 [prep] | 186 |
|
| 2 | in [prep] [pron] | 99 |
|
| 3 | in 1986 [pron] | 74 |
|
| 4 | 1986 [prep] [pron] | 16 |
|
