| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so we [vb base] a | 63 |
|
| 2 | so we [vb base] a | 55 |
|
| 3 | so we have a | 30 |
|
| 4 | so we [vb base] an | 8 |
|
| 5 | so we need a | 5 |
|
| 6 | so we get a | 5 |
|
