| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [vb pp] [adj] [noun] | 286 |
|
| 2 | often [vb pp] [adj] [noun] | 93 |
|
| 3 | is often [adj] [noun] | 30 |
|
| 4 | is often [vb pp] [noun] | 18 |
|
| 5 | is often [vb pp] [adj] | 17 |
|
