| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been clear for some [noun sg] | 6 |
|
| 2 | have been clear for some [noun] | 6 |
|
| 3 | [verb] been clear for some time | 5 |
|
| 4 | [verb] been clear for some time | 5 |
|
