| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] [been] [v-ing] | 6806 |
|
| 2 | [been] [v-ing] [adv prt] | 1534 |
|
| 3 | [vb base] [v-ing] [adv prt] | 1067 |
|
| 4 | [vb base] [been] [adv prt] | 646 |
|
