| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | system [is] [that] it [verb] | 15 |
|
| 2 | system [is] [that] it [vb -s] | 15 |
|
| 3 | system [is] [that] it [verb] | 15 |
|
| 4 | system is [that] it [verb] | 15 |
|
| 5 | system [is] that it [verb] | 15 |
|
