In Gerunds^x, Present tenses^x, Auxiliaries^x

Inchoateknowledge wrote:What does (simple) future tense mean in this sentence? The grammarian (it is a grammarian, isn't it?) you're quoting would probably tell you that there is no future tense. Many linguists claim English has only two tenses: Past and Non-past (sometimes called present)....

Just change it into "I must go" - then it's easier to analyze: "go" here is the full verb that is in its infinitive and follows the modal auxiliary must - without to! I have to go: "have to" is the substitute form for "must", "go" again is the full verb in its infinitive. "Have to" here is a...