| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not sure [adv] [conj] | 10 |
|
| 2 | [be] not sure [adv] [conj] | 10 |
|
| 3 | [am/are] not sure [adv] [conj] | 9 |
|
| 4 | 'm not sure [adv] [conj] | 7 |
|
| 5 | not [adv] sure [adv] [conj] | 6 |
|
| 6 | not [adv] sure [adv] [conj] | 6 |
|
| 7 | not sure [adv] [conj] [pron] | 8 |
|
| 8 | not sure [adv] [conj] [pers pn] | 7 |
|
