| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] years before that | 10 |
|
| 2 | [adj] years before that | 10 |
|
| 3 | [adj] years before [that] | 10 |
|
| 4 | [det] years before [conj] | 8 |
|
| 5 | [num] years before [conj] | 8 |
|
