Present participle; Past participle - heating - heated Present - heat - heat - heats - heat - heat - heat Past - heated - heated - heated - heated - heated - heated Future - will heat - will heat - will heat - will heat - will heat - will heat Present conditional - would heat - would heat - would heat - would heat - would heat - would heat Present Perfect - have heated - have heated - has heated - have heated - have heated - have heated Past Perfect - had heated - had heated - had heated - had heated - had heated - had heated Future Perfect - will have heated - will have heated - will have heated - will have heated - will have heated - will have heated Past conditional - would have heated - would have heated - would have heated - would have heated - would have heated - would have heated Imperative - - - heat - - - - - - - -