Present participle; Past participle - sheltering - sheltered Present - shelter - shelter - shelters - shelter - shelter - shelter Past - sheltered - sheltered - sheltered - sheltered - sheltered - sheltered Future - will shelter - will shelter - will shelter - will shelter - will shelter - will shelter Present conditional - would shelter - would shelter - would shelter - would shelter - would shelter - would shelter Present Perfect - have sheltered - have sheltered - has sheltered - have sheltered - have sheltered - have sheltered Past Perfect - had sheltered - had sheltered - had sheltered - had sheltered - had sheltered - had sheltered Future Perfect - will have sheltered - will have sheltered - will have sheltered - will have sheltered - will have sheltered - will have sheltered Past conditional - would have sheltered - would have sheltered - would have sheltered - would have sheltered - would have sheltered - would have sheltered Imperative - - - shelter - - - - - - - -