| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] for about [adj] | 48 |
|
| 2 | [vb past] for about [num] | 44 |
|
| 3 | lasted for about [adj] | 8 |
|
| 4 | [vb past] for about ten | 7 |
|
| 5 | [vb past] for about three | 7 |
|
| 6 | [vb past] for about three | 7 |
|
| 7 | [vb past] for about ten | 7 |
|
| 8 | accounted for about [adj] | 6 |
|
