| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [v-ing] [adv] [prep] a | 101 |
|
| 2 | [verb] [been] [v-ing] [adv] [prep] a | 101 |
|
| 3 | [vb past] [been] [v-ing] [adv] [prep] a | 37 |
|
| 4 | 'd [been] [verb] [adv] [prep] a | 21 |
|
| 5 | 'd [been] [v-ing] [adv] [prep] [art] | 16 |
|
| 6 | 'd [be] [v-ing] [adv] [prep] a | 5 |
|
