| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [verb] been operating [prep] | 21 |
|
| 2 | [noun] have been operating [prep] | 21 |
|
| 3 | [noun sg] [verb] been operating [prep] | 13 |
|
| 4 | [noun] [vb -s] been operating [prep] | 12 |
|
| 5 | [noun] has been operating [prep] | 12 |
|
| 6 | [noun] [verb] been operating for | 8 |
|
| 7 | [noun] [verb] been operating for | 8 |
|
| 8 | [noun] have been operating [prep] | 6 |
|
| 9 | [noun] [verb] been operating in | 6 |
|
| 10 | [noun pl] [verb] been operating [prep] | 6 |
|
| 11 | [noun] [vb base] been operating [prep] | 6 |
|
| 12 | [noun] [verb] been operating in | 6 |
|
