Warning, this verb may not exist. Conjugation is given as example.
Indicative
Present
don't I sniffer? don't you sniffer? doesn't he sniffer? don't we sniffer? don't you sniffer? don't they sniffer?
Present continuous
am I not sniffering? aren't you sniffering? isn't he sniffering? aren't we sniffering? aren't you sniffering? aren't they sniffering?
Preterite
didn't I sniffer? didn't you sniffer? didn't he sniffer? didn't we sniffer? didn't you sniffer? didn't they sniffer?
Preterite continuous
wasn't I sniffering? weren't you sniffering? wasn't he sniffering? weren't we sniffering? weren't you sniffering? weren't they sniffering?
Present perfect
haven't I sniffered? haven't you sniffered? hasn't he sniffered? haven't we sniffered? haven't you sniffered? haven't they sniffered?
Present perfect continuous
haven't I been sniffering? haven't you been sniffering? hasn't he been sniffering? haven't we been sniffering? haven't you been sniffering? haven't they been sniffering?
Pluperfect
hadn't I sniffered? hadn't you sniffered? hadn't he sniffered? hadn't we sniffered? hadn't you sniffered? hadn't they sniffered?
Pluperfect continuous
hadn't I been sniffering? hadn't you been sniffering? hadn't he been sniffering? hadn't we been sniffering? hadn't you been sniffering? hadn't they been sniffering?
Future
won't I sniffer? won't you sniffer? won't he sniffer? won't we sniffer? won't you sniffer? won't they sniffer?
Future continuous
won't I be sniffering? won't you be sniffering? won't he be sniffering? won't we be sniffering? won't you be sniffering? won't they be sniffering?
Future perfect
won't I have sniffered? won't you have sniffered? won't he have sniffered? won't we have sniffered? won't you have sniffered? won't they have sniffered?
Future perfect continuous
won't I have been sniffering? won't you have been sniffering? won't he have been sniffering? won't we have been sniffering? won't you have been sniffering? won't they have been sniffering?
Conditional
Present
wouldn't I sniffer? wouldn't you sniffer? wouldn't he sniffer? wouldn't we sniffer? wouldn't you sniffer? wouldn't they sniffer?
Present continuous
wouldn't I be sniffering? wouldn't you be sniffering? wouldn't he be sniffering? wouldn't we be sniffering? wouldn't you be sniffering? wouldn't they be sniffering?
Past
wouldn't I have sniffered? wouldn't you have sniffered? wouldn't he have sniffered? wouldn't we have sniffered? wouldn't you have sniffered? wouldn't they have sniffered?
Past continuous
wouldn't I have been sniffering? wouldn't you have been sniffering? wouldn't he have been sniffering? wouldn't we have been sniffering? wouldn't you have been sniffering? wouldn't they have been sniffering?