> Tense -- a change in the form of a verb to show, among other things, time reference. Therefore English has two tenses,
past and present.

Excuse me for pointing out the blatantly obvious but isn't there a future tense? I seem to remember one being taught to me at school. Also, most schoolchildren will be familiar with writing lines as punishment. 'I will not talk in class' etc. etc. ad nauseum. Past? Present? I think not!! Definitely future!