접두사 a-로 시작하는 일부 형용사는 주로 연결동사, 특히 be동사 뒤에 쓰인다.

afloat, afraid, alight, alike, alive, alone, asleep, awake 등

The baby is asleep.
A sleeping baby.

She was afraid.
A frightened woman.

The boat is still afloat.
A floating boat.

The fish is still alive.
A live fish.