Present participle; Past participle - abstaining - abstained Present - abstain - abstain - abstains - abstain - abstain - abstain Past - abstained - abstained - abstained - abstained - abstained - abstained Future - will abstain - will abstain - will abstain - will abstain - will abstain - will abstain Present conditional - would abstain - would abstain - would abstain - would abstain - would abstain - would abstain Present Perfect - have abstained - have abstained - has abstained - have abstained - have abstained - have abstained Past Perfect - had abstained - had abstained - had abstained - had abstained - had abstained - had abstained Future Perfect - will have abstained - will have abstained - will have abstained - will have abstained - will have abstained - will have abstained Past conditional - would have abstained - would have abstained - would have abstained - would have abstained - would have abstained - would have abstained Imperative - - - abstain - - - - - - - -