[ Gerund and Infinitive ]
Sorry, but I can’t help _______.
A. laugh
B. to laugh
C. laughing

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Infinitive FormsUse of Prepositions or ConjunctionsVerb + Infinitive or GerundNoun, Pronoun, Adjective, VerbModals and Modal PerfectsComparative - SuperlativeGrammar: Have toPast Simple & Past ContinuousPresent and Past Simple PassivePast Tense vs Present TenseOther quiz:
Tenses › ViewBy next Friday, we __________ here for three weeks.
A. will have been staying
B. will stay
C. have stayed
D. are staying
Grammar › View
Penny … of getting her children a dog.
A. thinks
B. is thinking
C. used to think
D. didn’t use to think
Grammar › ViewWhat is the simple subject in the following sentence? My favorite food is pizza with extra cheese.
A. favorite
B. food
C. pizza
D. cheese
Future Continuous, Future Perfect and Future Perfect Continuous › View
Which tense do we use to talk about a completed action in the future
A. Future perfect continuous
B. Future continuous
C. Future perfect