SN4 ""

No	Pattern	Freq
1	[vb mod] have been [v-ing]	1003
2	[vb mod] have be [v-ing]	967
3	must have be [v-ing]	289
4	would have be [v-ing]	170
5	might have be [v-ing]	135
6	should have be [v-ing]	128
7	may have be [v-ing]	117
8	could have be [v-ing]	93
9	[vb mod] have be going	38
10	[vb mod] have be doing	37
11	'd have be [v-ing]	33
12	[vb mod] 've be [v-ing]	28
13	[vb mod] have be looking	26
14	[vb mod] have be working	25
15	[vb mod] have be thinking	25
16	will have be [v-ing]	24
17	[vb mod] have be trying	17
18	[vb mod] have be lying	17
19	[vb mod] have be waiting	15
20	[vb mod] have be wearing	15
21	[vb mod] have be talking	15
22	[vb mod] have be sitting	15
23	[vb mod] have be taking	15
24	[vb mod] have be using	12
25	[vb mod] have be standing	12
26	[vb mod] have be watching	11
27	[vb mod] have be driving	11
28	[vb mod] have be speaking	11
29	[vb mod] have be getting	10
30	[vb mod] have be saying	10