| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have been a [noun] of | 17 |
|
| 2 | which [verb] been a [noun sg] of | 17 |
|
| 3 | which [verb] been a [noun] of | 13 |
|
| 4 | which had been a [noun] of | 12 |
|
| 5 | which [vb past] been a [noun] of | 12 |
|
| 6 | which [verb] been a feature of | 6 |
|
| 7 | which [verb] been a feature of | 6 |
|
| 8 | which [vb -s] been a [noun] of | 5 |
|
| 9 | which has been a [noun] of | 5 |
|
