No | Pattern | Freq | Relations |
---|---|---|---|
1 | be at once a [noun] | 17 | |
2 | be at once a [noun] | 17 | |
3 | be [prep] once a [noun] | 17 | |
4 | be [prep] once a [noun sg] | 17 | |
5 | be [prep] once a [noun] | 17 | |
6 | be [prep] once a [noun] | 13 | |
7 | is [prep] once a [noun] | 9 | |
8 | was [prep] once a [noun] | 5 |