| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [verb] [adv prt] since | 12 |
|
| 2 | have be [v-ing] [adv prt] since | 7 |
|
| 3 | have be [verb] on since | 5 |
|
| 4 | have be [vb pp] [adv prt] since | 5 |
|
