| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [noun] it [vb past] | 203 |
|
| 2 | [noun sg] system [pron] [vb past] | 95 |
|
| 3 | [noun sg] system it [verb] | 17 |
|
| 4 | [noun] system it [vb past] | 6 |
|
