to concentrate
Verbo regular: concentrate - concentrated- concentrated

Indicativo 	
Presente 	Presente continuo 	Pretérito 	Pretérito continuo 	
I concentrate
you concentrate
he concentrates
we concentrate
you concentrate
they concentrate 	I'mconcentrating
you'reconcentrating
he'sconcentrating
we'reconcentrating
you'reconcentrating
they'reconcentrating	I concentrated
you concentrated
he concentrated
we concentrated
you concentrated
they concentrated	Iwasconcentrating
youwereconcentrating
hewasconcentrating
wewereconcentrating
youwereconcentrating
theywereconcentrating	
Presente perfecto 	Presente perfecto continuo 	Pluscuamperfecto 	Pluscuamperfecto continuo 	
I've concentrated
you've concentrated
he's concentrated
we've concentrated
you've concentrated
they've concentrated	I'vebeen concentrating
you'vebeen concentrating
he'sbeen concentrating
we'vebeen concentrating
you'vebeen concentrating
they'vebeen concentrating	I'd concentrated
you'd concentrated
he'd concentrated
we'd concentrated
you'd concentrated
they'd concentrated	I'd been concentrating
you'd been concentrating
he'd been concentrating
we'd been concentrating
you'd been concentrating
they'd been concentrating	
Futuro simple 	Futuro continuo 	Futuro perfecto 	Futuro perfecto contínuo 	
I'll concentrate
you'll concentrate
he'll concentrate
we'll concentrate
you'll concentrate
they'll concentrate 	I'll be concentrating
you'll be concentrating
he'll be concentrating
we'll be concentrating
you'll be concentrating
they'll be concentrating	I'll have concentrated
you'll have concentrated
he'll have concentrated
we'll have concentrated
you'll have concentrated
they'll have concentrated	I'll have been concentrating
you'll have been concentrating
he'll have been concentrating
we'll have been concentrating
you'll have been concentrating
they'll have been concentrating	

Condicional 	
Presente 	Presente continuo 	Passado 	Passado continuo 	
I'd concentrate
you'd concentrate
he'd concentrate
we'd concentrate
you'd concentrate
they'd concentrate 	I'd be concentrating
you'd be concentrating
he'd be concentrating
we'd be concentrating
you'd be concentrating
they'd be concentrating	I'd have concentrated
you'd have concentrated
he'd have concentrated
we'd have concentrated
you'd have concentrated
they'd have concentrated	I'd have been concentrating
you'd have been concentrating
he'd have been concentrating
we'd have been concentrating
you'd have been concentrating
they'd have been concentrating	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to concentrate 	 	concentrate
Let's concentrate
concentrate 	 	

Participio 	
Presente 	Passado 	 	 	
concentrating	concentrated