| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what is to be [verb] | 127 |
|
| 2 | what is to be [vb pp] | 127 |
|
| 3 | what is to be do | 54 |
|
| 4 | what is to be done | 54 |
|
| 5 | what is to be achieved | 6 |
|
| 6 | what is to be understood | 6 |
|
| 7 | what is to be achieve | 6 |
|
| 8 | what is to be understand | 6 |
|
| 9 | what is to be teach | 5 |
|
| 10 | what is to be taught | 5 |
|
