| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] on [art] | 1570 |
|
| 2 | [am/are] usually [art] | 95 |
|
| 3 | usually on [art] | 73 |
|
| 4 | [am/are] usually on | 12 |
|
