[ Present Perfect Tense ]
She has never …. in the ocean.
A. swim
B. swam
C. swom
D. swum

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Who or WhomProgressive Verb TensesModals for Ability, Possibility and PermissionPresent Perfect Simple and ContinuousTenses UsagePronounSimple Compound and Complex SentencesAdjectives and AdverbsPast and Present TensesIrregular Plural NounsOther quiz:
Relative Clause › ViewHis best movie,______won several awards, was about the life of Gandhi.
A. that
B. whose
C. which
D. whom
Grammar - could / could not › View
Could you __________ when you were ten years old?
A. swam
B. swim
C. swum
D. swimming