Common mistakes
The sentences people get wrong most, with the fix and why. Choose one, then try a few like it.
89 common mistakes, grouped by point.
I have done or I did?
How long have you been…?
will, going to or I'm doing?
used to
“We use to play outside.”use to in a sentence without did “I didn't used to like fish.”didn't used to, did you used to “Where do you use to live?”don't use to, do you use to “We used to having dinner together.”used to + an -ing word “My sister was used to be shy.”was used to for the past “Why you used to walk to school?”you used to? as a question “My cousin would have long hair when we were children.”would for be, know or like in the past
in, on or at? Prepositions of time
good at, interested in…
“I'm good in cooking.”good at, bad at, terrible at “I'm interested on history.”interested in “My parents are proud for me.”proud of, afraid of, aware of “I'm worried of my exams.”worried about “She's married with a doctor.”married to “She was rude with her teacher.”kind to, rude to, mean to “The town is famous of its festival.”famous for, known for “I'm keen in learning the guitar.”keen on “Who is responsible of the kitchen?”responsible for
depend on, listen to…
“It depends of the weather.”depend on, rely on “She never listens me.”listen to “I spend a lot in clothes.”spend money or time on “I don't believe on ghosts.”believe in “We arrived to the hotel.”arrive at or in, not arrive to “She reminds me to her mother.”remind someone of “I need to pay my coffee.”pay for something “I'm searching my keys.”search for, look for “Don't blame me of the mess.”blame someone for “I can't concentrate in my work.”concentrate on “I made friends to two people.”make friends with “They complained for the noise.”complain about
a, an, the or nothing?
If it rains… (not "if it will")
If I had…, I would…
If I had known…
“If I would have known, I would have come.”would or would have after if “If they didn't destroy the forest, the animals wouldn't have lost their home.”I did after if, for the past “If you had asked me, I would help you.”would without have, for the past “If more people have been careful, the river wouldn't have got dirty.”have done after if
I wish I had… / I wish you would…
enjoy doing or want to do?
must be, can't be
should have, could have
“I should have went to bed earlier.”should have went, could have took “We should have listen to the forecast.”should have + the plain verb “I should check the forecast yesterday.”should or could without have, for the past “The company should had acted sooner.”should had, could has “You needn't to have waited.”needn't to have, should to