| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [adv prt] [prep] | 1253 |
|
| 2 | building [adv prt] [prep] | 150 |
|
| 3 | been building [adv prt] | 44 |
|
| 4 | been building [prep] | 11 |
|
