passive voice?


Hello I need help with the sentence below, rewording so it is not in passive voice

See example:

According to Cobb et al. (2010) the lasers most commonly used for periodontal treatment are diode lasers, Nd:YAG, Er:YAG, Er, Cr:YSGG, CO², and photodynamic therapy protocols.
asked Feb 09 '14 at 22:59 deannashannon New member

0 answers

Your answer

Write at least 20 characters

Have a question about English grammar, style or vocabulary use? Ask now to get help from Grammarly experts for FREE.