| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] [adv] [v-ing] | 534 |
|
| 2 | [vb infin] [conj] it [is] [adv] | 346 |
|
| 3 | [vb infin] [conj] it [is] [v-ing] | 42 |
|
| 4 | [vb infin] it [is] [adv] [v-ing] | 10 |
|
