infinitive

present

retube

indicative

present

(I)retube
(you)retube
(he,she,it)retubes
(we)retube
(you)retube
(they)retube

past

(I)retubed
(you)retubed
(he,she,it)retubed
(we)retubed
(you)retubed
(they)retubed

participle

present

retubing

past

retubed