マストではありません
masutodewārimasen
1. Not necessary.; Not required.
★ Common
Noun
#601364
1. Not necessary.; Not required.
1. Was not necessary.; Was not required.
1. mast (of ship)
1. necessary; indispensable
1. wealthy; rich
1. hedge
1. There; Behold
1. Was; Existed
1. To be (exists); To have