\begin{table}[]
\centering
\begin{tabular}{l|c|c|c|c|c|c|c|c|}
\cline{2-9}
\multicolumn{1}{c|}{}                   & \multicolumn{2}{c|}{\textbf{2}} & \multicolumn{3}{c|}{\textbf{2+}}     & \multicolumn{2}{c|}{\textbf{3}} & \textbf{4} \\ \hline
\multicolumn{1}{|l|}{\textbf{Language}} & \textbf{a}     & \textbf{b}     & \textbf{a} & \textbf{b} & \textbf{d} & \textbf{a}     & \textbf{c}     & \textbf{a} \\ \hline
\multicolumn{1}{|l|}{Arabic}            & -0.83          & 0.11           & 1.92       & -0.76      & -1.37      & -1.14          & 0.001          & -0.31      \\ \hline
\multicolumn{1}{|l|}{Basque}            & -0.60          & 0.17           & 2.33       & -0.09      & -2.80      & -0.82          & 0.01           & -0.32      \\ \hline
\multicolumn{1}{|l|}{Catalan}           & -0.77          & 0.11           & 1.12       & -0.35      & -1.50      & -1.03          & 0.01           & -0.31      \\ \hline
\multicolumn{1}{|l|}{Chinese}           & -0.71          & 0.12           & 1.61       & -0.10      & -2.23      & -0.89          & 0.01           & -0.33      \\ \hline
\multicolumn{1}{|l|}{Czech}             & -1.01          & 0.02           & 1.43       & -1.35      & -1.10      & -              & -              & -0.29      \\ \hline
\multicolumn{1}{|l|}{English}           & -0.52          & 0.19           & 1.79       & -0.19      & -1.94      & -0.86          & 0.01           & -0.28      \\ \hline
\multicolumn{1}{|l|}{Greek}             & -0.80          & 0.11           & 1.01       & -0.31      & -1.52      & -1.04          & 0.003          & -0.32      \\ \hline
\multicolumn{1}{|l|}{Hungarian}         & -0.40          & 0.18           & -0.15      & 0.31       & -0.30      & -0.61          & 0.005          & 0.21       \\ \hline
\multicolumn{1}{|l|}{Italian}           & -0.85          & 0.09           & 0.90       & -0.43      & -1.38      & -1.08          & 0.002          & -0.32      \\ \hline
\multicolumn{1}{|l|}{Turkish}           & -0.62          & 0.17           & -0.79      & 0.14       & 0.18       & -0.88          & 0.007          & -0.33      \\ \hline
\end{tabular}
\caption{Models' parameters}
\end{table}