| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [adv] [v-ing] | 582 |
|
| 2 | is [adv] [v-ing] to | 543 |
|
| 3 | is [adv] [v-ing] to | 338 |
|
| 4 | [adv] [adv] [v-ing] to | 309 |
|
| 5 | is [adv] [adv] to | 158 |
|
