\starttext

\unprotected\def\x{\currentTABLErow,\currentTABLEcolumn}

\bTABLE
    \bTR \bTD[nr=3] \x \eTD \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR                    \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR                    \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD       \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD       \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD       \bTD \x \eTD \bTD \x \eTD \eTR
\eTABLE

\bTABLE
    \bTR \bTD[nx=2] \x \eTD              \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD       \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD       \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD       \bTD \x \eTD \bTD \x \eTD \eTR
\eTABLE

\bTABLE
    \bTR \bTD[nx=2,nr=2] \x \eTD              \bTD \x \eTD \eTR
    \bTR                                      \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD            \bTD \x \eTD \bTD \x \eTD \eTR
    \bTR \bTD \x \eTD            \bTD \x \eTD \bTD \x \eTD \eTR
\eTABLE

\stoptext
