| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is often [verb] | 1903 |
|
| 2 | is often [vb pp] | 1861 |
|
| 3 | is [adv] found | 309 |
|
| 4 | is [adv] found | 254 |
|
| 5 | be often found | 97 |
|
| 6 | [be] often found | 97 |
|
| 7 | is often find | 33 |
|
| 8 | [is] often found | 32 |
|
| 9 | is often found | 32 |
|
