Present participle; Past participle - boiling - boiled Present - boil - boil - boils - boil - boil - boil Past - boiled - boiled - boiled - boiled - boiled - boiled Future - will boil - will boil - will boil - will boil - will boil - will boil Present conditional - would boil - would boil - would boil - would boil - would boil - would boil Present Perfect - have boiled - have boiled - has boiled - have boiled - have boiled - have boiled Past Perfect - had boiled - had boiled - had boiled - had boiled - had boiled - had boiled Future Perfect - will have boiled - will have boiled - will have boiled - will have boiled - will have boiled - will have boiled Past conditional - would have boiled - would have boiled - would have boiled - would have boiled - would have boiled - would have boiled Imperative - - - boil - - - - - - - -