Present participle; Past participle - coffining - coffined Present - coffin - coffin - coffins - coffin - coffin - coffin Past - coffined - coffined - coffined - coffined - coffined - coffined Future - will coffin - will coffin - will coffin - will coffin - will coffin - will coffin Present conditional - would coffin - would coffin - would coffin - would coffin - would coffin - would coffin Present Perfect - have coffined - have coffined - has coffined - have coffined - have coffined - have coffined Past Perfect - had coffined - had coffined - had coffined - had coffined - had coffined - had coffined Future Perfect - will have coffined - will have coffined - will have coffined - will have coffined - will have coffined - will have coffined Past conditional - would have coffined - would have coffined - would have coffined - would have coffined - would have coffined - would have coffined Imperative - - - coffin - - - - - - - -