| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | system which [verb] [adj] [noun pl] | 34 |
|
| 2 | system [Wh det] [verb] [adj] [noun pl] | 26 |
|
| 3 | system [Wh det] [verb] [adj] [noun pl] | 25 |
|
| 4 | system [Wh det] [vb -s] [adj] [noun pl] | 14 |
|
| 5 | system [Wh det] [vb past] [adj] [noun pl] | 12 |
|
| 6 | system [Wh det] [vb base] [adj] [noun pl] | 8 |
|
| 7 | systems [Wh det] [verb] [adj] [noun pl] | 8 |
|
| 8 | system [Wh det] [verb] [det] [noun pl] | 6 |
|
