| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [art] [noun sg] | 9148 |
|
| 2 | have been studying [art] | 27 |
|
| 3 | been studying [art] [noun sg] | 15 |
|
| 4 | have been studying [noun sg] | 10 |
|
