Parts of Speech

Showing Possession & Apostrophes (US)

"My friends house is huge" comes back with an apostrophe added — learn where it goes

Samantha Callahan 9 min read Parts of Speech

Prepositions of Time, Place & Movement (US)

"On Tuesday" or "in Tuesday"? The tiny prepositions that trip up even fluent writers

Samantha Callahan 8 min read Parts of Speech

Prepositions of Time, Place & Movement (US)

Texting weekend plans and unsure about in, on, or at — nail every preposition

Samantha Callahan 7 min read The Verb System

The Present Perfect (US)

You typed "I sent the file" and hesitated — when American English wants present perfect instead

Samantha Callahan 9 min read The Verb System

The Present Perfect (US)

You text "I scored!" then a worksheet asks for the tense — learn to nail it

Samantha Callahan 9 min read Punctuation

Quotation Marks (US English)

Mid-sentence in a Slack message, you freeze — does the full stop go inside the quote marks

Samantha Callahan 12 min read