Not Only But Also: How to Use Not Only But Also Correctly - Love English | English vocabulary words, Learn english, English vocabulary words learning
IUB English Language Resource Center - In English, subject verb agreement is a grammatical rule, which states that the subject and the verb must agree in a sentence. Learn 10 useful rules
Not only but also FCE, CAE, CPE English grammar | English grammar, Learn english, English words
Using of Not only...But also Rules and Examples » OnlyMyEnglish