| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [vb pp] [adj] | 481 |
|
| 2 | [be] often [vb pp] [adj] | 65 |
|
| 3 | be often [vb pp] [adj] | 65 |
|
| 4 | [is] often [vb pp] [adj] | 28 |
|
| 5 | is often [verb] [adj] | 27 |
|
