to flatten
Regular verb: flatten - flattened- flattened

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I flatten
you flatten
he flattens
we flatten
you flatten
they flatten 	I'mflattening
you'reflattening
he'sflattening
we'reflattening
you'reflattening
they'reflattening	I flattened
you flattened
he flattened
we flattened
you flattened
they flattened	Iwasflattening
youwereflattening
hewasflattening
wewereflattening
youwereflattening
theywereflattening	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've flattened
you've flattened
he's flattened
we've flattened
you've flattened
they've flattened	I'vebeen flattening
you'vebeen flattening
he'sbeen flattening
we'vebeen flattening
you'vebeen flattening
they'vebeen flattening	I'd flattened
you'd flattened
he'd flattened
we'd flattened
you'd flattened
they'd flattened	I'd been flattening
you'd been flattening
he'd been flattening
we'd been flattening
you'd been flattening
they'd been flattening	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll flatten
you'll flatten
he'll flatten
we'll flatten
you'll flatten
they'll flatten 	I'll be flattening
you'll be flattening
he'll be flattening
we'll be flattening
you'll be flattening
they'll be flattening	I'll have flattened
you'll have flattened
he'll have flattened
we'll have flattened
you'll have flattened
they'll have flattened	I'll have been flattening
you'll have been flattening
he'll have been flattening
we'll have been flattening
you'll have been flattening
they'll have been flattening	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd flatten
you'd flatten
he'd flatten
we'd flatten
you'd flatten
they'd flatten 	I'd be flattening
you'd be flattening
he'd be flattening
we'd be flattening
you'd be flattening
they'd be flattening	I'd have flattened
you'd have flattened
he'd have flattened
we'd have flattened
you'd have flattened
they'd have flattened	I'd have been flattening
you'd have been flattening
he'd have been flattening
we'd have been flattening
you'd have been flattening
they'd have been flattening	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to flatten 	 	flatten
Let's flatten
flatten 	 	

Participle 	
Present 	Past 	 	 	
flattening	flattened