| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [be] [verb] | 37453 |
|
| 2 | has [be] [v-ing] | 3558 |
|
| 3 | [verb] [be] operating | 94 |
|
| 4 | have [be] operating | 92 |
|
| 5 | has [be] operate | 46 |
|
| 6 | [vb -s] [be] operating | 42 |
|
