| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [noun] system [Wh det] | 14 |
|
| 2 | [verb] [prep] a [noun] system [Wh det] | 12 |
|
| 3 | [noun sg] [prep] a [noun] system [Wh det] | 11 |
|
| 4 | [vb pp] [prep] a [noun] system [Wh det] | 7 |
|
| 5 | [prep] [verb] a [noun] system [Wh det] | 5 |
|
| 6 | [prep] [v-ing] a [noun] system [Wh det] | 5 |
|
| 7 | [prep] a [adj] [noun] system [Wh det] | 17 |
|
| 8 | [prep] a [adj] [noun] system [Wh det] | 16 |
|
| 9 | [prep] a [noun sg] [noun] system [Wh det] | 11 |
|
| 10 | [prep] a [noun] [noun] system [Wh det] | 11 |
|
| 11 | [prep] a [noun] [noun] system [Wh det] | 11 |
|
| 12 | [prep] a [noun] [noun sg] system [Wh det] | 11 |
|
| 13 | [prep] a [noun] system [prep] [Wh det] | 9 |
|
| 14 | [prep] a [noun] system [prep] [Wh det] | 9 |
|
| 15 | [prep] a [noun] system in [Wh det] | 6 |
|
| 16 | [prep] a [noun] system in [Wh det] | 6 |
|
| 17 | [prep] a [noun] system [Wh det] [verb] | 19 |
|
| 18 | [prep] a [noun] system [Wh det] [vb -s] | 13 |
|
| 19 | [prep] a [noun] system [Wh det] [vb mod] | 8 |
|
| 20 | [prep] a [noun] system [Wh det] [modal v] | 8 |
|
| 21 | [prep] a [noun] system [Wh det] [vb past] | 6 |
|
