to impugn
Regular verb: impugn - impugned- impugned

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I impugn
you impugn
he impugns
we impugn
you impugn
they impugn 	I'mimpugning
you'reimpugning
he'simpugning
we'reimpugning
you'reimpugning
they'reimpugning	I impugned
you impugned
he impugned
we impugned
you impugned
they impugned	Iwasimpugning
youwereimpugning
hewasimpugning
wewereimpugning
youwereimpugning
theywereimpugning	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've impugned
you've impugned
he's impugned
we've impugned
you've impugned
they've impugned	I'vebeen impugning
you'vebeen impugning
he'sbeen impugning
we'vebeen impugning
you'vebeen impugning
they'vebeen impugning	I'd impugned
you'd impugned
he'd impugned
we'd impugned
you'd impugned
they'd impugned	I'd been impugning
you'd been impugning
he'd been impugning
we'd been impugning
you'd been impugning
they'd been impugning	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll impugn
you'll impugn
he'll impugn
we'll impugn
you'll impugn
they'll impugn 	I'll be impugning
you'll be impugning
he'll be impugning
we'll be impugning
you'll be impugning
they'll be impugning	I'll have impugned
you'll have impugned
he'll have impugned
we'll have impugned
you'll have impugned
they'll have impugned	I'll have been impugning
you'll have been impugning
he'll have been impugning
we'll have been impugning
you'll have been impugning
they'll have been impugning	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd impugn
you'd impugn
he'd impugn
we'd impugn
you'd impugn
they'd impugn 	I'd be impugning
you'd be impugning
he'd be impugning
we'd be impugning
you'd be impugning
they'd be impugning	I'd have impugned
you'd have impugned
he'd have impugned
we'd have impugned
you'd have impugned
they'd have impugned	I'd have been impugning
you'd have been impugning
he'd have been impugning
we'd have been impugning
you'd have been impugning
they'd have been impugning	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to impugn 	 	impugn
Let's impugn
impugn 	 	

Participle 	
Present 	Past 	 	 	
impugning	impugned