- Usedwithpresentparticipletomakeprogressiveform.Usedwithpastparticipletoformpassivevoice.Severalverbshavealternativeregularandirregularpasttenseandpastparticipleforms.Wecanoftensubstituteaparticiplephraseforanattributiveclause.InbothBritishandUSEnglis...
- 26929