| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [that] [modal v] [verb] [noun sg] | 562 |
|
| 2 | system [that] [modal v] [verb] | 75 |
|
| 3 | system [modal v] [verb] [noun sg] | 45 |
|
| 4 | system [that] [verb] [noun sg] | 25 |
|
