| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which [modal v] [verb] [noun sg] | 633 |
|
| 2 | [noun sg] which [modal v] [verb] [noun sg] | 369 |
|
| 3 | system which [modal v] [verb] [noun] | 16 |
|
| 4 | system which [modal v] [verb] [noun sg] | 9 |
|
| 5 | system [pron] [modal v] [verb] [noun sg] | 8 |
|
