Present participle; Past participle - interleaving - interleaved Present - interleave - interleave - interleaves - interleave - interleave - interleave Past - interleaved - interleaved - interleaved - interleaved - interleaved - interleaved Future - will interleave - will interleave - will interleave - will interleave - will interleave - will interleave Present conditional - would interleave - would interleave - would interleave - would interleave - would interleave - would interleave Present Perfect - have interleaved - have interleaved - has interleaved - have interleaved - have interleaved - have interleaved Past Perfect - had interleaved - had interleaved - had interleaved - had interleaved - had interleaved - had interleaved Future Perfect - will have interleaved - will have interleaved - will have interleaved - will have interleaved - will have interleaved - will have interleaved Past conditional - would have interleaved - would have interleaved - would have interleaved - would have interleaved - would have interleaved - would have interleaved Imperative - - - interleave - - - - - - - -