| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it has [adv] | 3785 |
|
| 2 | it has [adv] | 2663 |
|
| 3 | [pron] has often | 148 |
|
| 4 | [pers pn] has often | 110 |
|
| 5 | it [verb] often | 102 |
|
| 6 | it have often | 98 |
|
| 7 | it [vb -s] often | 94 |
|
| 8 | it has often | 88 |
|
| 9 | it has often | 88 |
|
