SN4 ""

No	Pattern	Freq
1	[verb] heavily upon	60
2	rely heavily upon	26
3	[adv] heavily upon	16
4	[adv] heavily upon	16
5	[vb past] heavily upon	16
6	depend heavily upon	10
7	[vb base] heavily upon	10
8	[vb -s] heavily upon	9
9	[v-ing] heavily upon	8
10	relied heavily upon	8
11	[to-vb] heavily upon	7
12	[vb pp] heavily upon	6
13	draw heavily upon	6
14	rely heavily upon	5
15	weigh heavily upon	5
16	heavily [adj] upon	16
17	heavily [adj] upon	16
18	heavily dependent upon	15
19	heavily dependent upon	15
20	heavily upon [art]	32
21	heavily upon the	32
22	heavily upon the	32
23	heavily upon [art]	32
24	heavily upon [adj]	19
25	heavily upon [pron]	13
26	heavily upon [adj]	11
27	heavily upon [noun]	11
28	heavily upon [det]	8
29	heavily upon [pos pn]	7
30	heavily upon [pers pn]	6