"Could you speak slowly?"

Translation: Você poderia falar devagar?

[E.T.Gregor]

I got a rather strange explanation of my error: I misread the English sentence and typed "Você pode falar devagar". The explanation that I was given about my error was "You used the ele/ela form 'pode' instead of the eu form 'poderia'", which is horribly misleading, since the error is in the mood, not the person. I don't know how doable it is, but if the explanations could be tweaked a bit, that'd be great.

[Equilibrio8]

What is the difference between lente and devagar?

[Paulenrique]

"lento" is a synonym for "devagar".

[ptackova]

Why not "Você podia falar devagar?"

[Paulenrique]

When we ask a question in a formal way, we use "poderia". "Podia" is to show a past capacity

[DominoD87]

Great fact to know. 'poderia' is the politest way to ask a question? or is there a way of saying something like 'would you' ? Also, is there 'May I' in portuguese? haha

[Paulenrique]

No, we don't have another way to say "would you". It is also translated as "poderia". May I = Can I in Portuguese (Posso....?)

[DominoD87]

Thanks again Paulenrique.

[AnastasiaStyIes]

The English question is ambiguous without context. It could have been asking whether, yesterday, you were able to speak more slowly.

[TonyAnders10]

Is it wrong to put você after poderia?

[Paulenrique]

It sounds odd since we almost never use a pronoun after a verb.