SN4 ""

No	Pattern	Freq
1	[vb past] to be [v-ing]	1682
2	seemed to be [v-ing]	1094
3	appeared to be [v-ing]	279
4	happened to be [v-ing]	88
5	[vb past] to be going	70
6	[vb past] to be taking	41
7	[vb past] to be doing	39
8	[vb past] to be making	39
9	[vb past] to be looking	39
10	[vb past] to be moving	33
11	[vb past] to be coming	33
12	claimed to be [v-ing]	31
13	[vb past] to be getting	31
14	had to be [v-ing]	27
15	[vb past] to be having	27
16	[vb past] to be saying	27
17	[vb past] to be trying	25
18	[vb past] to be standing	23
19	[vb past] to be heading	23
20	looked to be [v-ing]	21
21	[vb past] to be holding	21
22	[vb past] to be working	20
23	[vb past] to be passing	20
24	[vb past] to be happening	20
25	[vb past] to be running	19
26	[vb past] to be thinking	18
27	[vb past] to be waiting	17
28	[vb past] to be enjoying	16
29	[vb past] to be carrying	16
30	[vb past] to be listening	15