Sub Macro1()
'Graham Mayor - http://www.gmayor.com - Last updated - 12 Jan 2018
Dim oRng As Range
Dim strEndWord() As Variant
Dim i As Long
    strEndWord = Array("so", "jas", "mf")
    Set oRng = Selection.Paragraphs(1).Range
    With oRng
        .Font.Bold = True
        .End = .Words(1).End - 1
        .InsertAfter ChrW(9658)
        .End = .End + 1
        .Font.ColorIndex = wdRed
        .End = ActiveDocument.Range.End - 1
        .Start = .Words.Last.Start
        For i = 0 To UBound(strEndWord)
            If strEndWord(i) = LCase(.Text) Then
                .InsertBefore vbTab
                .Font.Bold = True
                Exit For
            End If
        Next i
    End With
lbl_Exit:
    Set oRng = Nothing
    Exit Sub
End Sub