Tenses for flounder Present participle:
floundering
Present:
flounder (3.person: flounders)
Past:
floundered
Future:
will flounder
Present conditional:
would flounder
Present Perfect:
have floundered (3.person: has floundered)
Past Perfect:
had floundered
Future Perfect:
will have floundered
Past conditional:
would have floundered