to concenter
Regular verb: concenter - concentered- concentered

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I concenter
you concenter
she concenters
we concenter
you concenter
they concenter 	I'mconcentering
you'reconcentering
she'sconcentering
we'reconcentering
you'reconcentering
they'reconcentering	I concentered
you concentered
she concentered
we concentered
you concentered
they concentered	Iwasconcentering
youwereconcentering
shewasconcentering
wewereconcentering
youwereconcentering
theywereconcentering	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've concentered
you've concentered
she's concentered
we've concentered
you've concentered
they've concentered	I'vebeen concentering
you'vebeen concentering
she'sbeen concentering
we'vebeen concentering
you'vebeen concentering
they'vebeen concentering	I'd concentered
you'd concentered
she'd concentered
we'd concentered
you'd concentered
they'd concentered	I'd been concentering
you'd been concentering
she'd been concentering
we'd been concentering
you'd been concentering
they'd been concentering	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll concenter
you'll concenter
she'll concenter
we'll concenter
you'll concenter
they'll concenter 	I'll be concentering
you'll be concentering
she'll be concentering
we'll be concentering
you'll be concentering
they'll be concentering	I'll have concentered
you'll have concentered
she'll have concentered
we'll have concentered
you'll have concentered
they'll have concentered	I'll have been concentering
you'll have been concentering
she'll have been concentering
we'll have been concentering
you'll have been concentering
they'll have been concentering	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd concenter
you'd concenter
she'd concenter
we'd concenter
you'd concenter
they'd concenter 	I'd be concentering
you'd be concentering
she'd be concentering
we'd be concentering
you'd be concentering
they'd be concentering	I'd have concentered
you'd have concentered
she'd have concentered
we'd have concentered
you'd have concentered
they'd have concentered	I'd have been concentering
you'd have been concentering
she'd have been concentering
we'd have been concentering
you'd have been concentering
they'd have been concentering	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to concenter 	 	concenter
Let's concenter
concenter 	 	

Participle 	
Present 	Past 	 	 	
concentering	concentered