Simplify the algebraic expression by combining like (or similar) terms. \[ -4 x-4 y^{2}+3-3 y^{2}-4 x-4 \]

Let's simplify the expression step by step! First, we'll identify and combine like terms. The expression is: \[-4x - 4y^2 + 3 - 3y^2 - 4x - 4.\] Combining the \(x\) terms, we have: \(-4x - 4x = -8x\). Now, for the \(y^2\) terms: \(-4y^2 - 3y^2 = -7y^2\). Finally, combine the constant terms: \(3 - 4 = -1\). Putting it all together, we get: \[-8x - 7y^2 - 1.\] So, the simplified expression is: \[-8x - 7y^2 - 1.\]