The simple answer to your question is yes, you can use tubeless tyres with a tube (the OEM tyres that my T100 came with are tubeless types fitted with a tube). As usual, there are some provisos, eg. if the tyre is a radial type then ensure that the tube you use is marked as suitable for use with a radial tyre. There are some useful tips on the Dunlop website
HERE. I suggest you read the sections on front/rear tyre matching, tubes and tube-type rims.