| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not usually a | 29 |
|
| 2 | [be] not usually a | 27 |
|
| 3 | [is] not usually a | 24 |
|
| 4 | is not usually a | 22 |
|
| 5 | [am/are] not usually a | 5 |
|
