| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] once [adv] [v-ing] | 85 |
|
| 2 | be once [adv] [v-ing] | 85 |
|
| 3 | [was/were] once [adv] [v-ing] | 35 |
|
| 4 | is once [adv] [v-ing] | 28 |
|
| 5 | [is] once [adv] [v-ing] | 28 |
|
| 6 | was once [adv] [v-ing] | 22 |
|
| 7 | [noun] once [adv] [v-ing] | 21 |
|
| 8 | [am/are] once [adv] [v-ing] | 18 |
|
| 9 | are once [adv] [v-ing] | 17 |
|
| 10 | [prep] once [adv] [v-ing] | 15 |
|
| 11 | [prep] once [adv] [v-ing] | 15 |
|
| 12 | were once [adv] [v-ing] | 13 |
|
| 13 | [noun sg] once [adv] [v-ing] | 9 |
|
| 14 | [noun prp] once [adv] [v-ing] | 8 |
|
| 15 | [conj] once [adv] [v-ing] | 6 |
|
| 16 | [pron] once [adv] [v-ing] | 5 |
|
| 17 | by once [adv] [v-ing] | 5 |
|
| 18 | by once [adv] [v-ing] | 5 |
|
| 19 | once [adv] [adv] [v-ing] | 5 |
|
| 20 | once [adv] [adv] [v-ing] | 5 |
|
| 21 | once [adv] [prep] [v-ing] | 22 |
|
| 22 | once [adv] [prep] [v-ing] | 22 |
|
| 23 | once [adv] [be] [v-ing] | 7 |
|
| 24 | once [adv] [be] [v-ing] | 7 |
|
| 25 | once [adv] be [v-ing] | 7 |
|
| 26 | once [adv] be [v-ing] | 7 |
|
| 27 | once [adv] [adv] [v-ing] | 5 |
|
| 28 | once [adv] [adv] [v-ing] | 5 |
|
| 29 | once [adv] [v-ing] [prep] | 47 |
|
| 30 | once [adv] [v-ing] [prep] | 47 |
|
