| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] or [vb base] [prep] [art] | 491 |
|
| 2 | operation [conj] [vb base] [prep] [art] | 8 |
|
| 3 | operation or [verb] [prep] [art] | 7 |
|
| 4 | operation or [vb base] [prep] [art] | 7 |
|
| 5 | operation or [vb base] [prep] [art] | 7 |
|
