| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [prep] a long | 55 |
|
| 2 | [v-ing] [prep] a long time | 47 |
|
| 3 | [be] [v-ing] a long time | 38 |
|
| 4 | [be] [prep] a long time | 37 |
|
| 5 | [be] [v-ing] [prep] a time | 28 |
|
