| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it is [adv] [vb pp] | 815 |
|
| 2 | [subord] it is [adv] [vb pp] | 609 |
|
| 3 | [conj] it is usually [vb pp] | 36 |
|
| 4 | [subord] it [be] usually [vb pp] | 23 |
|
| 5 | [subord] it be usually [vb pp] | 23 |
|
| 6 | [subord] it [is] usually [vb pp] | 21 |
|
| 7 | [subord] it is usually [vb pp] | 20 |
|
| 8 | [subord] it is usually [verb] | 20 |
|
| 9 | [subord] [pron] is usually [vb pp] | 20 |
|
