| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] for a long time | 169 |
|
| 2 | [vb -s] [vb pp] a long time | 16 |
|
| 3 | [vb -s] for a long time | 14 |
|
| 4 | [vb -s] [vb pp] for a long | 12 |
|
