Present participle; Past participle - approximating - approximated Present - approximate - approximate - approximates - approximate - approximate - approximate Past - approximated - approximated - approximated - approximated - approximated - approximated Future - will approximate - will approximate - will approximate - will approximate - will approximate - will approximate Present conditional - would approximate - would approximate - would approximate - would approximate - would approximate - would approximate Present Perfect - have approximated - have approximated - has approximated - have approximated - have approximated - have approximated Past Perfect - had approximated - had approximated - had approximated - had approximated - had approximated - had approximated Future Perfect - will have approximated - will have approximated - will have approximated - will have approximated - will have approximated - will have approximated Past conditional - would have approximated - would have approximated - would have approximated - would have approximated - would have approximated - would have approximated Imperative - - - approximate - - - - - - - -