| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [was/were] [art] | 24107 |
|
| 2 | [noun sg] system [was/were] | 421 |
|
| 3 | [noun sg] system [art] | 77 |
|
| 4 | system [was/were] [art] | 75 |
|
