| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] a | 19697 |
|
| 2 | [adv] [vb infin] a | 8214 |
|
| 3 | often [verb] a | 801 |
|
| 4 | often [vb infin] [art] | 223 |
|
| 5 | often [vb infin] a | 117 |
|
