Present participle; Past participle - studding - studded Present - stud - stud - studs - stud - stud - stud Past - studded - studded - studded - studded - studded - studded Future - will stud - will stud - will stud - will stud - will stud - will stud Present conditional - would stud - would stud - would stud - would stud - would stud - would stud Present Perfect - have studded - have studded - has studded - have studded - have studded - have studded Past Perfect - had studded - had studded - had studded - had studded - had studded - had studded Future Perfect - will have studded - will have studded - will have studded - will have studded - will have studded - will have studded Past conditional - would have studded - would have studded - would have studded - would have studded - would have studded - would have studded Imperative - - - stud - - - - - - - -