| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] it [is] [prep] [verb] | 18 |
|
| 2 | [vb infin] it [is] [prep] [v-ing] | 18 |
|
| 3 | [vb infin] it [is] worth [verb] | 12 |
|
| 4 | [vb infin] it 's [prep] [verb] | 11 |
|
| 5 | think it [is] [prep] [verb] | 9 |
|
| 6 | [vb infin] it is [prep] [verb] | 7 |
|
| 7 | [vb infin] it [is] by [verb] | 5 |
|
