| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is [adv] [vb pp] | 1474 |
|
| 2 | [conj] it is [adv] [vb pp] | 1131 |
|
| 3 | [conj] it [be] often [vb pp] | 93 |
|
| 4 | [conj] it be often [vb pp] | 93 |
|
| 5 | [conj] [pron] is often [vb pp] | 85 |
|
| 6 | [conj] it [is] often [vb pp] | 82 |
|
| 7 | [conj] [pers pn] is often [vb pp] | 82 |
|
| 8 | [conj] it is often [vb pp] | 75 |
|
| 9 | [conj] it is often [verb] | 75 |
|
| 10 | [conj] it is often [vb pp] | 75 |
|
