Present participle; Past participle - perforating - perforated Present - perforate - perforate - perforates - perforate - perforate - perforate Past - perforated - perforated - perforated - perforated - perforated - perforated Future - will perforate - will perforate - will perforate - will perforate - will perforate - will perforate Present conditional - would perforate - would perforate - would perforate - would perforate - would perforate - would perforate Present Perfect - have perforated - have perforated - has perforated - have perforated - have perforated - have perforated Past Perfect - had perforated - had perforated - had perforated - had perforated - had perforated - had perforated Future Perfect - will have perforated - will have perforated - will have perforated - will have perforated - will have perforated - will have perforated Past conditional - would have perforated - would have perforated - would have perforated - would have perforated - would have perforated - would have perforated Imperative - - - perforate - - - - - - - -