SN4 ""

No	Pattern	Freq
1	[conj] only if	340
2	[coord] only if	322
3	[verb] only if	307
4	[noun] only if	306
5	but only if	233
6	but only if	233
7	[noun sg] only if	216
8	[adj] only if	158
9	[vb pp] only if	156
10	[adj] only if	142
11	and only if	87
12	and only if	87
13	[vb infin] only if	74
14	[noun pl] only if	72
15	[adv] only if	58
16	[be] only if	53
17	be only if	53
18	[is] only if	49
19	[adv] only if	45
20	[pron] only if	30
21	[vb -s] only if	29
22	is only if	26
23	[pers pn] only if	25
24	's only if	23
25	[v-ing] only if	19
26	apply only if	17
27	work only if	16
28	[vb base] only if	15
29	[noun prp] only if	13
30	then only if	12