I just ran into this NDTV Walk the Talk interview that Tabu did – should be in between 2004 – that aired in Jan’05 where she gets into the various films that she’s done in various languages. She mentions that she’s got a flare for languages (!!!) and that she’s fluent in Telugu, and had picked up Marathi. She also mentioned she’s done films in Malayalam (which she says she doesn’t understand when doing her lines), Kannada, and Tamil.
And… and… and… she took three months of Spanish. There. LOL
From what I’ve been able to see from Hindi, at least, Spanish conjugation won’t be much of a head-scratching problem. I don’t know exactly how much Spanish she could’ve picked up in that period of time, considering I know people who gave up Spanish after a couple of months because of verb conjugation (especially from the ‘to be’ and ‘to have’)- it could be the same from Tabu. xD
It also depends on whether she tried Castilian (The Spanish with a Spain accent) or Spanish (with any variation of Latin American accent), because the different sounds for ‘s,’ ‘c,’ and ‘z’ may frustrate some.
So now I wonder how that went for her. xD