| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [verb] to | 357 |
|
| 2 | it is [adv] [verb] to | 263 |
|
| 3 | it is often [verb] [prep] | 102 |
|
| 4 | it is often [verb] [prep] | 102 |
|
| 5 | [pron] is often [verb] to | 47 |
|
| 6 | it [be] often [verb] to | 25 |
|
| 7 | it be often [verb] to | 25 |
|
| 8 | it is often [verb] to | 20 |
|
| 9 | it is often [verb] to | 20 |
|
| 10 | it [is] often [verb] to | 20 |
|
