| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [v-ing] to [be] | 142 |
|
| 2 | [noun pl] is [adv] to [be] | 28 |
|
| 3 | [noun pl] is [v-ing] to [be] | 27 |
|
| 4 | [noun pl] [adv] [v-ing] to [be] | 18 |
|
| 5 | [noun pl] is [adv] [v-ing] to | 12 |
|
