| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not sure that [adj] [noun sg] | 6 |
|
| 2 | [be] not sure that [adj] [noun sg] | 6 |
|
| 3 | [am/are] not sure that [adj] [noun sg] | 5 |
|
| 4 | not sure that [art] [adj] [noun sg] | 5 |
|
| 5 | not sure that [art] [adj] [noun sg] | 5 |
|
