| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] is [adv] [vb pp] | 1686 |
|
| 2 | [prep] [noun] is often [vb pp] | 86 |
|
| 3 | [noun] is often [adv] [vb pp] | 69 |
|
| 4 | [prep] [noun] is often [adv] | 32 |
|
