| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i once [vb past] a [noun sg] | 66 |
|
| 2 | i once have a [noun sg] | 14 |
|
| 3 | i once had a [noun sg] | 14 |
|
| 4 | i once saw a [noun sg] | 11 |
|
| 5 | i once see a [noun sg] | 11 |
|
