| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] often used | 7 |
|
| 2 | [subord] it [is] often used | 6 |
|
| 3 | it [is] [adv] often used | 8 |
|
| 4 | it [is] [adv] often used | 7 |
|
| 5 | it [is] often used [prep] | 8 |
|
| 6 | it [is] often used [prep] | 8 |
|
| 7 | it [is] often used [to-vb] | 6 |
|
| 8 | it [is] often used [verb] | 6 |
|
