| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [adv] a | 1414 |
|
| 2 | [is] [adv] [adv] a | 1182 |
|
| 3 | [is] [adv] usually a | 32 |
|
| 4 | [is] [adv] usually [art] | 10 |
|
| 5 | [be] [adv] usually a | 8 |
|
| 6 | [is] [adv] usually a | 7 |
|
