No | Pattern | Freq | Relations |
---|---|---|---|
1 | have been [verb] | 25544 | |
2 | have been [v-ing] | 3746 | |
3 | [verb] been operating | 92 | |
4 | have been operating | 92 | |
5 | have been operate | 30 | |
6 | have [been] operating | 23 | |
7 | [vb base] been operating | 23 | |
8 | have be operating | 23 | |
9 | have [be] operating | 23 |