Present participle; Past participle - sucking - sucked Present - suck - suck - sucks - suck - suck - suck Past - sucked - sucked - sucked - sucked - sucked - sucked Future - will suck - will suck - will suck - will suck - will suck - will suck Present conditional - would suck - would suck - would suck - would suck - would suck - would suck Present Perfect - have sucked - have sucked - has sucked - have sucked - have sucked - have sucked Past Perfect - had sucked - had sucked - had sucked - had sucked - had sucked - had sucked Future Perfect - will have sucked - will have sucked - will have sucked - will have sucked - will have sucked - will have sucked Past conditional - would have sucked - would have sucked - would have sucked - would have sucked - would have sucked - would have sucked Imperative - - - suck - - - - - - - -