Present participle; Past participle - fostering - fostered Present - foster - foster - fosters - foster - foster - foster Past - fostered - fostered - fostered - fostered - fostered - fostered Future - will foster - will foster - will foster - will foster - will foster - will foster Present conditional - would foster - would foster - would foster - would foster - would foster - would foster Present Perfect - have fostered - have fostered - has fostered - have fostered - have fostered - have fostered Past Perfect - had fostered - had fostered - had fostered - had fostered - had fostered - had fostered Future Perfect - will have fostered - will have fostered - will have fostered - will have fostered - will have fostered - will have fostered Past conditional - would have fostered - would have fostered - would have fostered - would have fostered - would have fostered - would have fostered Imperative - - - foster - - - - - - - -