| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at first [noun sg] [prep] | 110 |
|
| 2 | [vb -s] at [noun sg] [prep] | 106 |
|
| 3 | [vb -s] at first [noun sg] | 43 |
|
| 4 | [vb -s] first [noun sg] [prep] | 20 |
|
| 5 | [vb -s] at first [prep] | 10 |
|
