SN4 ""

No	Pattern	Freq
1	was [v-ing] [prep] an	277
2	were [v-ing] [prep] an	88
3	[was/were] [v-ing] to an	70
4	[was/were] [v-ing] for an	58
5	[was/were] [v-ing] in an	49
6	[was/were] [v-ing] with an	37
7	[was/were] coming [prep] an	36
8	[was/were] [v-ing] at an	34
9	[was/were] [v-ing] on an	26
10	[was/were] working [prep] an	24
11	[was/were] [v-ing] as an	21
12	[was/were] looking [prep] an	20
13	[was/were] sitting [prep] an	19
14	[was/were] going [prep] an	15
15	[was/were] talking [prep] an	13
16	[was/were] [v-ing] from an	13
17	[was/were] standing [prep] an	12
18	[was/were] acting [prep] an	11
19	[was/were] [v-ing] like an	10
20	[was/were] [v-ing] by an	9
21	[was/were] [v-ing] into an	9
22	[was/were] dealing [prep] an	8
23	[was/were] [v-ing] through an	8
24	[was/were] living [prep] an	8
25	[was/were] speaking [prep] an	7
26	[was/were] heading [prep] an	6
27	[was/were] rising [prep] an	6
28	[was/were] growing [prep] an	5
29	[was/were] waiting [prep] an	5