| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [adv] an | 568 |
|
| 2 | 's [adv] an | 368 |
|
| 3 | 's usually [art] | 83 |
|
| 4 | 's usually [art] | 83 |
|
| 5 | 's usually a | 54 |
|
| 6 | be usually an | 46 |
|
| 7 | [be] usually an | 46 |
|
| 8 | [is] usually an | 36 |
|
| 9 | 's usually an | 5 |
|
