| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which [modal v] [vb infin] | 9264 |
|
| 2 | [noun sg] which [modal v] [vb infin] | 5623 |
|
| 3 | system [pron] [modal v] [vb infin] | 129 |
|
| 4 | system which [modal v] [vb infin] | 106 |
|
| 5 | system which [modal v] [verb] | 87 |
|
