| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb past] [verb] [adj] year | 12 |
|
| 2 | which [vb past] [vb pp] [adj] year | 8 |
|
| 3 | which [vb past] [verb] [num] year | 8 |
|
| 4 | which [vb past] [verb] [adj] years | 8 |
|
| 5 | which had [verb] [adj] year | 8 |
|
