Alive is an adjective and means “living” or “not dead,” but we do not generally use alive before a noun.
- The lobsters in that tank are alive. Not, The “alive lobster”
- Luckily after the hurricane my tomato plants were still alive.
Live is an adjective and means “living” or “not dead”
- We bought live lobsters at the fish market.
- That truck is carrying live animals.
Died is the past tense form of the verb die, which means to stop living.
- Frank said his pet bird died.
- JS Bach died in 1750.
Dead is an adjective which means “not alive.”
- I pulled out all of the dead plants from my garden.
- I found a dead mouse in the basement this morning.