Hello, I was trying to add to my mage the spells fire stream and frost stream, but I couldnt. Anyone knows how to add them with console commands??

Fire stream? Is this from a mod? or are you reffering to the spell Flames?

is a unique spells of some Dragon Priest, look here:

http://elderscrolls.wikia.com/wiki/Fire_Stream

Open Console, type:

Help "Fire Stream"

That should come up with an entry like:

Spell 03030CE6 Fire Stream (Or whatever your load Order is)

Then you open the console, and type

Player.AddSpell [That Number]

And hit enter, and it should add it

It′s works with the Frost Stream, but it doesn′t work with the Fire Stream

When you add a spell and it doesnt function right or even appear in your inventory then its because its not meant to be equipped by the player. you'll have to fix that via the Creation Kit. thats the only way.

I dont know how to use the Creation Kit

You're screwed then. as far as i know those spells are pretty OP anyway.

Player.EquipSpell [SpellID] Left

That SHOULD Equip the spell to your left-hand; usually the reason they do not appear is because they have no spell Schools; if that works, you'll need to re-enter it every time you want to use the spell.