| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [is] a [noun] | 778 |
|
| 2 | [is] [vb pp] a [noun] | 751 |
|
| 3 | which [is] [vb pp] [noun] | 37 |
|
| 4 | which [is] [vb pp] a | 35 |
|
