[ Present Tense ]
The formula for writing the present perfect continuous tense is:
A. had + been + present participle
B. has/have + been + present participle
C. has/have + been + past participle

Random Topics:
Gerunds in SentencesSimple Present and Present ContinuousPresent and Past TenseCountable and UncountablePossessive Nouns with Apostrophes and PronounsAlong & AgainstGerund Subject or ObjectAdverb ClausesModals VerbsConjunctions - ConnectorsOther quiz:
Pronoun › ViewWe meet ___ friends at the mall yesterday.
A. our
B. yours
C. its
D. it
E. me
Conditional Sentences and Adverbs › View
Adverbial phrase or clause?
They orbited the Earth before they re-entered the Earth’s atmosphere.
A. Phrase
B. Clause
Vocabulary › ViewThe company was criticized for hiring __________ employees without proper documentation.
A. legal
B. illegal
Grammar › View
The children __ down the slide.
A. go
B. will go
