| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had to be [adj] | 643 |
|
| 2 | had to be [adj] | 558 |
|
| 3 | [verb] to be sure | 195 |
|
| 4 | [vb past] to be sure | 61 |
|
| 5 | have to be sure | 39 |
|
| 6 | had [prep] be sure | 18 |
|
| 7 | had to [be] sure | 18 |
|
| 8 | had to be sure | 18 |
|
| 9 | had [prep] be sure | 18 |
|
| 10 | had to be sure | 18 |
|
| 11 | had to be sure | 18 |
|
| 12 | had to [be] sure | 18 |
|
