Present participle; Past participle - underwriting - underwritten Present - underwrite - underwrite - underwrites - underwrite - underwrite - underwrite Past - underwrote - underwrote - underwrote - underwrote - underwrote - underwrote Future - will underwrite - will underwrite - will underwrite - will underwrite - will underwrite - will underwrite Present conditional - would underwrite - would underwrite - would underwrite - would underwrite - would underwrite - would underwrite Present Perfect - have underwritten - have underwritten - has underwritten - have underwritten - have underwritten - have underwritten Past Perfect - had underwritten - had underwritten - had underwritten - had underwritten - had underwritten - had underwritten Future Perfect - will have underwritten - will have underwritten - will have underwritten - will have underwritten - will have underwritten - will have underwritten Past conditional - would have underwritten - would have underwritten - would have underwritten - would have underwritten - would have underwritten - would have underwritten Imperative - - - underwrite - - - - - - - -