| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [v-ing] [to-vb] the | 513 |
|
| 2 | it is [v-ing] [to-vb] | 317 |
|
| 3 | it is [to-vb] the | 164 |
|
| 4 | it is [v-ing] the | 131 |
|
