Present participle; Past participle - drowsing - drowsed Present - drowse - drowse - drowses - drowse - drowse - drowse Past - drowsed - drowsed - drowsed - drowsed - drowsed - drowsed Future - will drowse - will drowse - will drowse - will drowse - will drowse - will drowse Present conditional - would drowse - would drowse - would drowse - would drowse - would drowse - would drowse Present Perfect - have drowsed - have drowsed - has drowsed - have drowsed - have drowsed - have drowsed Past Perfect - had drowsed - had drowsed - had drowsed - had drowsed - had drowsed - had drowsed Future Perfect - will have drowsed - will have drowsed - will have drowsed - will have drowsed - will have drowsed - will have drowsed Past conditional - would have drowsed - would have drowsed - would have drowsed - would have drowsed - would have drowsed - would have drowsed Imperative - - - drowse - - - - - - - -