{namespace be=TYPO3\CMS\Backend\ViewHelpers}
<f:if condition="{context.drawingConfiguration.languageMode}">
    <f:then>
        <f:render partial="PageLayout/LanguageColumns" arguments="{_all}" />
    </f:then>
    <f:else>
        <f:render partial="PageLayout/Grid" arguments="{_all}" />
    </f:else>
</f:if>