| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 1989 [adv] | 187 |
|
| 2 | 1989 [Wh adv] | 103 |
|
| 3 | 1989 when | 101 |
|
| 4 | 1989 when | 101 |
|
| 5 | 1989 [adv] | 79 |
|
| 6 | 1989 following | 9 |
|
| 7 | 1989 following | 9 |
|
| 8 | 1989 alone | 7 |
|
| 9 | 1989 only | 7 |
|
| 10 | 1989 only | 7 |
|
| 11 | 1989 alone | 7 |
|
| 12 | 1989 respectively | 5 |
|
| 13 | 1989 respectively | 5 |
|
