| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] for six [noun pl] | 8 |
|
| 2 | which [verb] for six [noun] | 8 |
|
| 3 | which [verb] for six month | 5 |
|
| 4 | which [verb] for six months | 5 |
|
