| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] to be the main | 11 |
|
| 2 | [be] to [be] the main | 11 |
|
| 3 | be to [be] the main | 11 |
|
| 4 | [was/were] to [be] the main | 9 |
|
| 5 | was to [be] the main | 7 |
|
