Present participle; Past participle - succumbing - succumbed Present - succumb - succumb - succumbs - succumb - succumb - succumb Past - succumbed - succumbed - succumbed - succumbed - succumbed - succumbed Future - will succumb - will succumb - will succumb - will succumb - will succumb - will succumb Present conditional - would succumb - would succumb - would succumb - would succumb - would succumb - would succumb Present Perfect - have succumbed - have succumbed - has succumbed - have succumbed - have succumbed - have succumbed Past Perfect - had succumbed - had succumbed - had succumbed - had succumbed - had succumbed - had succumbed Future Perfect - will have succumbed - will have succumbed - will have succumbed - will have succumbed - will have succumbed - will have succumbed Past conditional - would have succumbed - would have succumbed - would have succumbed - would have succumbed - would have succumbed - would have succumbed Imperative - - - succumb - - - - - - - -