thingsaurus
This is a 'thesaurus for things' or similarity engine: results show things that have something in common with what you enter. The more stars, the more things in common! You can use it for research, recommendations or simply to explore ideas and related subjects.
Here are your results for Penthouse principle...
Stars indicate closer matches.
Do-support 
- English interrogative words
- English relative words
- Nested quotation
- Nominative absolute
- Sentence diagram
- Stripping (linguistics)
- Verb phrase ellipsis
- English grammar
- -ly
- Adverbial
- Adverbial genitive
- English adverbs
- And/or
- English articles
- Barbarism (linguistics)
- Capitalization in English
- English clause syntax
- Comma splice
- List of commonly misused English words
- Complement (linguistics)
- English compound
- Compound modifier
- English conditional sentences
- English coordinators
- Definite article reduction
- Dependent clause
- Dependent statement
- English determiners
- Distributive pronoun
- Double copula
- English adjectives
- English clause element
- English collocations
- English nouns
- English personal pronouns
- English-language idioms
- False singular
- False title
- Fewer versus less
- Free indirect speech
- Gapping
- Gender in English
- Germanic strong verb
- Germanic verbs
- Germanic weak verb
- Going-to future
- Grammatical tense
- Hair's breadth
- He (pronoun)
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