| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | and [adv] a [noun sg] | 1886 |
|
| 2 | system and a [noun sg] | 26 |
|
| 3 | system [adv] a [noun sg] | 9 |
|
| 4 | system and [adv] a | 5 |
|
