| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] sure that | 1480 |
|
| 2 | be sure that | 1480 |
|
| 3 | am [adj] that | 1360 |
|
| 4 | [am/are] sure that | 846 |
|
| 5 | am sure [conj] | 541 |
|
| 6 | am sure that | 528 |
|
| 7 | am sure [that] | 528 |
|
