described thusly three relatively independent components systemic functional grammar Halliday’s functional grammar: English described thusly systemic functional grammar http://en.wikipedia.org/wiki/Systemic_functional_grammar Systemic Functional Linguistics three relatively independent components English http://en.wikipedia.org/wiki/Systemic_functional_grammar Systemic functional grammar described thusly Systemic Functional Grammar Systemic Functional Grammar Systemic functional grammar English Systemic functional grammar Systemic Functional Grammar described thusly three relatively independent components systemic functional grammar systemic functional grammar en:Systemic functional grammar http://en.wikipedia.org/wiki/Systemic_functional_grammar systemic functional grammar Systemic functional grammar http://en.wikipedia.org/wiki/Systemic_functional_grammar Systemic Functional Grammar English systemic functional grammar systemic functional grammar described thusly Systemic Functional Grammar http://en.wikipedia.org/wiki/Systemic_functional_grammar textual metafunction