to warn
Regular verb: warn - warned- warned

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I warn
you warn
he warns
we warn
you warn
they warn 	I'mwarning
you'rewarning
he'swarning
we'rewarning
you'rewarning
they'rewarning	I warned
you warned
he warned
we warned
you warned
they warned	Iwaswarning
youwerewarning
hewaswarning
wewerewarning
youwerewarning
theywerewarning	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've warned
you've warned
he's warned
we've warned
you've warned
they've warned	I'vebeen warning
you'vebeen warning
he'sbeen warning
we'vebeen warning
you'vebeen warning
they'vebeen warning	I'd warned
you'd warned
he'd warned
we'd warned
you'd warned
they'd warned	I'd been warning
you'd been warning
he'd been warning
we'd been warning
you'd been warning
they'd been warning	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll warn
you'll warn
he'll warn
we'll warn
you'll warn
they'll warn 	I'll be warning
you'll be warning
he'll be warning
we'll be warning
you'll be warning
they'll be warning	I'll have warned
you'll have warned
he'll have warned
we'll have warned
you'll have warned
they'll have warned	I'll have been warning
you'll have been warning
he'll have been warning
we'll have been warning
you'll have been warning
they'll have been warning	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd warn
you'd warn
he'd warn
we'd warn
you'd warn
they'd warn 	I'd be warning
you'd be warning
he'd be warning
we'd be warning
you'd be warning
they'd be warning	I'd have warned
you'd have warned
he'd have warned
we'd have warned
you'd have warned
they'd have warned	I'd have been warning
you'd have been warning
he'd have been warning
we'd have been warning
you'd have been warning
they'd have been warning	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to warn 	 	warn
Let's warn
warn 	 	

Participle 	
Present 	Past 	 	 	
warning	warned