| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] to | 3989 |
|
| 2 | [is] not [v-ing] | 2803 |
|
| 3 | not [v-ing] to | 1276 |
|
| 4 | [is] not to | 540 |
|
