| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [adv] long time | 193 |
|
| 2 | [adv] [prep] a long time | 113 |
|
| 3 | [adv] [prep] a [adv] long | 20 |
|
| 4 | [adv] a [adv] long time | 6 |
|
