Grammar fix
gain weight
become heavier
To become heavier, usually because of eating more or exercising less.
collocationB1common
Hear it in context
Notice where the phrase sounds natural.
I tend to gain weight easily if I stop exercising.
Many people gain weight when they start working in an office because they move less during the day.
Fix the pattern
One small grammar move makes it sound right.
Not: I gained some weights over winter.
Say: I gained some weight over winter.
Uncountable — no 's' ('weights' = dumbbells).
Which sounds natural?
Tap the one a native speaker would say.
'Accrued additional body mass' is clinical; 'gain / put on weight' is natural.
Build natural chunks
Words that usually travel with it.
gain weight
- put on
- some
- a bit of
- easily