couldn't think of
Tom no podía pensar en ningún motivo para no entregarle el obsequio a Mary.
Tom couldn’t think of any reason not to give Mary the gift.
Tom no podía pensar en nada más.
Tom couldn't think of anything else.
Tom no podía pensar en un buen lugar para ocultarlo.
Tom couldn't think of a good place to hide it.
Tom no podía pensar en ninguna motivo por el que él no debiera quedarse.
Tom couldn't think of any reason why he shouldn't stay.