| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be used [prep] the first [noun] | 19 |
|
| 2 | be used [prep] the first [noun sg] | 18 |
|
| 3 | be used for the first [noun] | 10 |
|
| 4 | be used for the first [noun] | 10 |
|
| 5 | be used [prep] the first time | 8 |
|
| 6 | be used [prep] the first time | 8 |
|
| 7 | be used in the first [noun] | 7 |
|
| 8 | be used in the first [noun] | 7 |
|
| 9 | be used [prep] the first [noun] | 5 |
|
