| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been up to | 109 |
|
| 2 | have been up to | 109 |
|
| 3 | [vb past] been up to | 46 |
|
| 4 | had been up to | 34 |
|
| 5 | [vb base] been up to | 31 |
|
| 6 | [vb -s] been up to | 22 |
|
| 7 | 've been up to | 19 |
|
| 8 | has been up to | 12 |
|
| 9 | have been up to | 12 |
|
| 10 | 'd been up to | 12 |
|
| 11 | 's been up to | 10 |
|
| 12 | [vb infin] been up to | 9 |
|
| 13 | have been up to | 8 |
|
