The words and structures that look similar, feel similar — but mean something completely different
Why confusable pairs matter
Even advanced learners make systematic errors with pairs like do / make, since / for, or mustn't / don't have to. These are not vocabulary problems — they are system problems. Learning the underlying logic of each pair removes dozens of errors at once.
14
Verb pairs
11
Preposition pairs
7
Determiner pairs
60+
Total pairs
The key to mastering confusable pairs is understanding the underlying rule, not just memorising examples. Each section below gives you the logic first, then the examples.
Verb pairs
do/make, say/tell, bring/take…
Prepositions
in/at/on, since/for, by/until…
Articles & determiners
a/the/∅, few/a few, each/every…
Adjective pairs
-ed vs -ing, sensible/sensitive…
Connectors
although/despite, so/so that…
Modal verbs
must/have to, mustn't/needn't…
Nouns & register
advice, big/large/great, ask/demand…
Choice quiz
Pick the correct word
Gap fill
Complete the sentence
My glossary
Save pairs to review
Confusable pairs
Verb pairs & collocations
Select a pair — click 🔊 to hear any example, 🔖 to save to your glossary
Confusable pairs
Prepositions
Select a pair — study the rule, then the examples
Confusable pairs
Articles & determiners
Select a pair — the article system is one of the hardest things in English
Confusable pairs
Adjective pairs
Select a pair — many of these are false friends or spelling traps
Confusable pairs
Conjunctions & connectors
Select a pair — grammar class determines how they connect ideas
Confusable pairs
Modal verbs
Select a pair — modals express subtly different degrees of obligation, possibility, and permission
Confusable pairs
Nouns, register & structural traps
Select a category — uncountable nouns, register differences, and word-order traps
Confusable pairs
Choice quiz
Choose the correct word for each sentence — covers all sections
Confusable pairs
Gap fill
Choose the correct word or phrase to complete each sentence
Confusable pairs
My glossary
Pairs you have saved — click 🔖 Save on any pair card to add it here