In Gerunds^x, Simple past^x, Auxiliaries^x

1) Where are you? I've been waiting for 2 hours 2) I needn't have brought that milk I = subject need have bought = verb; present perfect tense, modal form (need is the auxiliary), buy is the main verb, bought is the past participle. not - adverb that - demonstrative pronoun refering...

Hello, Mr Pedantic. May I call you Mr P? Of course you may, JTT. {Please don't ever take my direct manner in these discussions as any type of personal attack. I only want to address the facts. If I believe you or anyone to be in err, I'll plainly say so and I hope you and others...