| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] in [art] | 4164 |
|
| 2 | [been] [v-ing] in [art] | 371 |
|
| 3 | [be] operating in [art] | 54 |
|
| 4 | [been] operating [prep] [art] | 18 |
|
| 5 | [been] operating in [art] | 5 |
|
| 6 | [been] operate in [art] | 5 |
|
