I forgot these other two sentences for you to check.
1) Her younger son did a one-week skiing course for beginners.
2) He also took private skiing (ski) lessons in the afternoon for a week
3) THe ski instructor taught him how to snowplough without ski poles.
4) He fell over only once because of the fog.
5) It was not worth buying him the skiwear since we thought he'll soon grow out of it. We rented both the ski boots and the skies.
Thank you
All are OK except for the spelling of the last word (skis).
"Skiing lessons" is preferred over "ski lessons". The sport is skiing. A ski is what you wear.
Snowplough is sometimes written as two words and often spelled "snowplow" in the USA. You are OK with that.
No problem! Let's go through the remaining two sentences:
3) The ski instructor taught him how to snowplough without ski poles.
To check the sentence, we need to make sure that the verb tense, subject-verb agreement, and overall grammar are correct.
The sentence appears to be grammatically correct. It uses the past tense ("taught") to describe an action that happened in the past. The subject ("The ski instructor") is singular and agrees with the singular verb ("taught"). The phrase "how to snowplough without ski poles" functions as the object of the sentence, describing what was taught.
4) He fell over only once because of the fog.
Again, let's check the grammar and make sure everything is correct.
This sentence also seems grammatically correct. The subject ("He") is singular and agrees with the singular verb ("fell"). The phrase "only once" describes the frequency of his fall, and "because of the fog" explains the cause of the fall.
Both sentences passed the grammar check, so they seem correct. Well done!