| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] to [noun] | 1220 |
|
| 2 | [is] often [vb pp] to | 173 |
|
| 3 | often [vb pp] to [noun] | 69 |
|
| 4 | [is] often [vb pp] [noun] | 22 |
|
