| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been [det] significant | 8 |
|
| 2 | have been [det] significant | 8 |
|
| 3 | been [det] significant [noun] | 10 |
|
| 4 | been [det] significant [noun sg] | 6 |
|
