| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [det] [noun sg] | 1508 |
|
| 2 | [is] [v-ing] [det] [noun sg] | 400 |
|
| 3 | it [is] [v-ing] [noun sg] | 177 |
|
| 4 | it [is] [v-ing] [det] | 134 |
|
| 5 | it [v-ing] [det] [noun sg] | 16 |
|
