| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] for about [num] | 8 |
|
| 2 | [prep] [verb] for about [adj] | 8 |
|
| 3 | [prep] [v-ing] for about [adj] | 7 |
|
| 4 | after [verb] for about [adj] | 5 |
|
