| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] about a | 68 |
|
| 2 | [modal v] [verb] half a | 58 |
|
| 3 | [verb] about half a | 51 |
|
| 4 | [modal v] [verb] about half | 18 |
|
