| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have [verb] for [adj] year | 10 |
|
| 2 | which [verb] [verb] for [adj] years | 10 |
|
| 3 | which [verb] [vb pp] for [adj] year | 10 |
|
| 4 | which [verb] [verb] for [num] year | 6 |
|
| 5 | which [vb past] [verb] for [adj] year | 5 |
|
| 6 | which had [verb] for [adj] year | 5 |
|
