good at / bad at swimming

Grammar notes

Good At, Bad At (Adjective Pattern)

Use good at or bad at before a noun or an -ing form.

This pattern talks about skill or lack of skill.

The little word at is the key piece in the middle.

• Example: She is good at drawing.
• Example: I am bad at remembering names.

Quick Rule

• good at / bad at + noun or verb-ing
• do not remove at from the pattern

Do not lose at. It is the small star of this pattern.