| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [is] that it | 1715 |
|
| 2 | system [is] that [pron] | 36 |
|
| 3 | system [be] that it | 33 |
|
| 4 | system [is] [conj] it | 28 |
|
| 5 | system [is] that it | 26 |
|
| 6 | system [is] [that] it | 26 |
|
