| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at first [noun sg] [verb] | 125 |
|
| 2 | [vb -s] at first [noun sg] | 43 |
|
| 3 | [vb -s] at [noun sg] [verb] | 24 |
|
| 4 | [vb -s] at first [verb] | 5 |
|
