| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] for [adv] a | 37 |
|
| 2 | accounts for [adv] a | 18 |
|
| 3 | [vb -s] for only a | 10 |
|
| 4 | [vb -s] for about a | 9 |
|
| 5 | [vb -s] for over a | 6 |
|
| 6 | [vb -s] for quite a | 5 |
|
