| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [verb] been [verb] | 32046 |
|
| 2 | [noun sg] [verb] been [v-ing] | 2219 |
|
| 3 | [noun] [verb] been operating | 43 |
|
| 4 | [noun sg] [verb] been operate | 32 |
|
| 5 | [noun sg] [verb] be operating | 26 |
|
| 6 | [noun sg] [verb] [be] operating | 26 |
|
| 7 | [noun sg] [verb] [been] operating | 25 |
|
