| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [v-ing] [prep] a [adj] | 228 |
|
| 2 | [been] [verb] [prep] a long | 73 |
|
| 3 | [be] [v-ing] [prep] a long | 58 |
|
| 4 | [been] [v-ing] [prep] [art] long | 30 |
|
