如果你不想去海滩，你可以说："I don't want to go to the beach."
这句话的来源可能是你自己对于不想去海滩的想法的表达。
例句：
I don't want to go to the beach this weekend. 我本周末不想去海滩。
She said she doesn't want to go to the beach, but I think she's just being difficult. 她说她不想去海滩，但我觉得她只是在装腔作势。
I asked if they wanted to go to the beach, but they all said they didn't want to. 我问他们是否想去海滩，但他们都说不想去。