も同然 => just like; same as ~ N2
と同時に => at the same time as; while; simultaneously ~ N2
~もどうぜんだ(~も同然だ)      => just like; same as ~ N1
も[同然「どうぜん」]だ => The same as saying A, as good as A N2
Adjectival, Descriptions
て形 => Te form N5
Conjugate verbs
条件形 => Conditional form N4
可能形 => Potential form N4
過去形 => Past form N5
Conjugate verbs
意向形 => volitional form​ N4
使役形 => Causative form N4
受身形 => Passive voice N4
命令形 => Imperative form N4