Present participle; Past participle - simmering - simmered Present - simmer - simmer - simmers - simmer - simmer - simmer Past - simmered - simmered - simmered - simmered - simmered - simmered Future - will simmer - will simmer - will simmer - will simmer - will simmer - will simmer Present conditional - would simmer - would simmer - would simmer - would simmer - would simmer - would simmer Present Perfect - have simmered - have simmered - has simmered - have simmered - have simmered - have simmered Past Perfect - had simmered - had simmered - had simmered - had simmered - had simmered - had simmered Future Perfect - will have simmered - will have simmered - will have simmered - will have simmered - will have simmered - will have simmered Past conditional - would have simmered - would have simmered - would have simmered - would have simmered - would have simmered - would have simmered Imperative - - - simmer - - - - - - - -