Present participle; Past participle - waterproofing - waterproofed Present - waterproof - waterproof - waterproofs - waterproof - waterproof - waterproof Past - waterproofed - waterproofed - waterproofed - waterproofed - waterproofed - waterproofed Future - will waterproof - will waterproof - will waterproof - will waterproof - will waterproof - will waterproof Present conditional - would waterproof - would waterproof - would waterproof - would waterproof - would waterproof - would waterproof Present Perfect - have waterproofed - have waterproofed - has waterproofed - have waterproofed - have waterproofed - have waterproofed Past Perfect - had waterproofed - had waterproofed - had waterproofed - had waterproofed - had waterproofed - had waterproofed Future Perfect - will have waterproofed - will have waterproofed - will have waterproofed - will have waterproofed - will have waterproofed - will have waterproofed Past conditional - would have waterproofed - would have waterproofed - would have waterproofed - would have waterproofed - would have waterproofed - would have waterproofed Imperative - - - waterproof - - - - - - - -