to understand
Verbo irregular: understand - understood- understood

Indicativo 	
Presente 	Presente contínuo 	Pretérito 	Preterito contínuo 	
I understand
you understand
he understands
we understand
you understand
they understand 	I'munderstanding
you'reunderstanding
he'sunderstanding
we'reunderstanding
you'reunderstanding
they'reunderstanding	Iunderstood
youunderstood
heunderstood
weunderstood
youunderstood
theyunderstood	Iwasunderstanding
youwereunderstanding
hewasunderstanding
wewereunderstanding
youwereunderstanding
theywereunderstanding	
Presente perfeito 	Presente perfeito contínuo 	Mais perfeito 	Contínuo mais perfeito 	
I've understood
you've understood
he's understood
we've understood
you've understood
they've understood	I'vebeen understanding
you'vebeen understanding
he'sbeen understanding
we'vebeen understanding
you'vebeen understanding
they'vebeen understanding	I'd understood
you'd understood
he'd understood
we'd understood
you'd understood
they'd understood	I'd been understanding
you'd been understanding
he'd been understanding
we'd been understanding
you'd been understanding
they'd been understanding	
Futuro 	Futuro contínuo 	futuro perfeito 	futuro perfeito contínuo 	
I'll understand
you'll understand
he'll understand
we'll understand
you'll understand
they'll understand 	I'll be understanding
you'll be understanding
he'll be understanding
we'll be understanding
you'll be understanding
they'll be understanding	I'll have understood
you'll have understood
he'll have understood
we'll have understood
you'll have understood
they'll have understood	I'll have been understanding
you'll have been understanding
he'll have been understanding
we'll have been understanding
you'll have been understanding
they'll have been understanding	

Condicional 	
Presente 	Presente contínuo 	Passado 	Passado contínuo 	
I'd understand
you'd understand
he'd understand
we'd understand
you'd understand
they'd understand 	I'd be understanding
you'd be understanding
he'd be understanding
we'd be understanding
you'd be understanding
they'd be understanding	I'd have understood
you'd have understood
he'd have understood
we'd have understood
you'd have understood
they'd have understood	I'd have been understanding
you'd have been understanding
he'd have been understanding
we'd have been understanding
you'd have been understanding
they'd have been understanding	

Infinitivo 	
Imperativo 	
Infinitivo 	 	Imperativo 	 	
to understand 	 	understand
Let's understand
understand 	 	

Particípio 	
Presente 	Passado 	 	 	
understanding	understood