| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been a significant [noun] | 46 |
|
| 2 | [verb] been a significant [noun sg] | 45 |
|
| 3 | [vb -s] been a significant [noun] | 33 |
|
| 4 | has been a significant [noun] | 32 |
|
| 5 | [verb] been a significant increase | 8 |
|
| 6 | [verb] been a significant increase | 8 |
|
| 7 | had been a significant [noun] | 5 |
|
| 8 | [vb past] been a significant [noun] | 5 |
|
