| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which are [adv] [vb pp] | 1260 |
|
| 2 | which are [adv] [vb pp] | 1039 |
|
| 3 | [pron] are often [vb pp] | 216 |
|
| 4 | which be often [vb pp] | 183 |
|
| 5 | which [be] often [vb pp] | 183 |
|
| 6 | which are often [verb] | 68 |
|
| 7 | which are often [vb pp] | 66 |
|
| 8 | which [am/are] often [vb pp] | 66 |
|
