| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] system [conj] [verb] | 404 |
|
| 2 | [noun sg] system [conj] [vb -s] | 123 |
|
| 3 | [noun sg] [noun] [conj] allows | 46 |
|
| 4 | [noun sg] system [conj] allow | 9 |
|
| 5 | [noun] system [conj] allows | 5 |
|
