Resources for writing
Resources useful to develop your writing skills for university study.
Academic writing
Helpful resources for academic writing.
Academic writing genres (advanced) - University of Otago
Spelling rules and interactive activities (elementary) - English Club
Downloadable digital resources for academic study, including podcasts (intermediate, advanced) - Massey OWLL
Resources for academic writing (intermediate, advanced) - Purdue OWL
Practice your writing (advanced) - Write&Improve with Cambridge
Gapfill exercises for beginner to upper intermediate students (beginner, intermediate, upper-intermediate) - ESOL Courses

(Source - Pixabay)
Essays
How to plan and structure your essays.

(Source - Purdue University)
Paragraphs
Link ideas and resources to help you build good paragraphs.
Paragraphs, an overview (intermediate, advanced) - Walden University
Paragraph writing (intermediate, advanced) - ThoughtCo.
Paragraphs (intermediate, advanced) - University of Melbourne
Essay mapping tool (intermediate, advanced) - Charles Darwin University
Writing paragraphs - activities with answers (intermediate, advanced) - UEFAP.com
Sentences
Sentences have subjects and verbs to convey meaning.

(Source - Pixabay)