Present participle; Past participle - underlaying - underlaid Present - underlay - underlay - underlays - underlay - underlay - underlay Past - underlaid - underlaid - underlaid - underlaid - underlaid - underlaid Future - will underlay - will underlay - will underlay - will underlay - will underlay - will underlay Present conditional - would underlay - would underlay - would underlay - would underlay - would underlay - would underlay Present Perfect - have underlaid - have underlaid - has underlaid - have underlaid - have underlaid - have underlaid Past Perfect - had underlaid - had underlaid - had underlaid - had underlaid - had underlaid - had underlaid Future Perfect - will have underlaid - will have underlaid - will have underlaid - will have underlaid - will have underlaid - will have underlaid Past conditional - would have underlaid - would have underlaid - would have underlaid - would have underlaid - would have underlaid - would have underlaid Imperative - - - underlay - - - - - - - -