| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they are [verb] [prep] a | 516 |
|
| 2 | they are usually [verb] [prep] | 75 |
|
| 3 | are usually [verb] [prep] a | 69 |
|
| 4 | they usually [verb] [prep] a | 9 |
|
