| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had be operate [prep] | 6 |
|
| 2 | [noun] had be operate [prep] | 6 |
|
| 3 | had be operate [prep] [art] | 7 |
|
| 4 | had be operate [prep] [art] | 7 |
|
| 5 | had be operate [prep] the | 5 |
|
| 6 | had be operate [prep] the | 5 |
|
