| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [v-ing] to [be] [prep] | 102 |
|
| 2 | [is] [verb] to [be] for | 11 |
|
| 3 | [be] [v-ing] to [be] for | 10 |
|
| 4 | [is] [v-ing] [prep] [be] for | 7 |
|
