| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] usually a | 39 |
|
| 2 | not usually a | 32 |
|
| 3 | [not/n't] usually a | 32 |
|
| 4 | not usually a | 31 |
|
| 5 | [adv] usually a | 11 |
|
| 6 | more usually a | 5 |
|
| 7 | more usually a | 5 |
|
