Present participle; Past participle - forestalling - forestalled Present - forestall - forestall - forestalls - forestall - forestall - forestall Past - forestalled - forestalled - forestalled - forestalled - forestalled - forestalled Future - will forestall - will forestall - will forestall - will forestall - will forestall - will forestall Present conditional - would forestall - would forestall - would forestall - would forestall - would forestall - would forestall Present Perfect - have forestalled - have forestalled - has forestalled - have forestalled - have forestalled - have forestalled Past Perfect - had forestalled - had forestalled - had forestalled - had forestalled - had forestalled - had forestalled Future Perfect - will have forestalled - will have forestalled - will have forestalled - will have forestalled - will have forestalled - will have forestalled Past conditional - would have forestalled - would have forestalled - would have forestalled - would have forestalled - would have forestalled - would have forestalled Imperative - - - forestall - - - - - - - -