| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what have [been] [v-ing] [adv prt] | 61 |
|
| 2 | what [verb] been [v-ing] [adv prt] | 61 |
|
| 3 | what [verb] [been] [v-ing] on | 57 |
|
| 4 | what [verb] [been] going [adv prt] | 56 |
|
| 5 | what [vb -s] [been] [v-ing] [adv prt] | 49 |
|
| 6 | what 's [been] [v-ing] [adv prt] | 33 |
|
| 7 | what has [been] [v-ing] [adv prt] | 16 |
|
| 8 | what had [been] [v-ing] [adv prt] | 12 |
|
| 9 | what [vb past] [been] [v-ing] [adv prt] | 12 |
|
