| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [conj] [verb] | 2853 |
|
| 2 | system be [verb] | 1741 |
|
| 3 | system [conj] [verb] | 1075 |
|
| 4 | system be [conj] | 113 |
|
