Present participle; Past participle - chaining - chained Present - chain - chain - chains - chain - chain - chain Past - chained - chained - chained - chained - chained - chained Future - will chain - will chain - will chain - will chain - will chain - will chain Present conditional - would chain - would chain - would chain - would chain - would chain - would chain Present Perfect - have chained - have chained - has chained - have chained - have chained - have chained Past Perfect - had chained - had chained - had chained - had chained - had chained - had chained Future Perfect - will have chained - will have chained - will have chained - will have chained - will have chained - will have chained Past conditional - would have chained - would have chained - would have chained - would have chained - would have chained - would have chained Imperative - - - chain - - - - - - - -