| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [verb] be [verb] [prep] | 15446 |
|
| 2 | [noun sg] [verb] be [v-ing] [prep] | 710 |
|
| 3 | [noun] [verb] be operating [prep] | 22 |
|
| 4 | [noun sg] [verb] be operate [prep] | 17 |
|
| 5 | [noun sg] [verb] [be] operating [prep] | 14 |
|
