For all tenses, this is always the first element in the verb pattern to change with the time extent (PRESENT, PAST, or FUTURE). It changes the same in our Fields of Time. We can say that it is the form closest to our cognitive ground. It changes the same for our value ON.
We have our time frames for our guidance. Overall, we can choose between the Simple and the Perfect, in the PAST time compass. We are about to think on talking about feelings and minds. Chantelle’s first book tells about a girl’s language of the heart. Art Veltall is thinking about a job change. Contending his mother-in-law yet resembles trying verbally to captivate a moving rock …
It is natural to wish someone good luck, with tests and exams. Grammar exercises can "buy" us some luck. The exercises do not have to be difficult, to work for our boutique d'bonheur.
When we read dictionaries, we remember that human brains do not have fixed connotations. A “squid” can be a marine animal. It may be a bird toy. “A bit of cosmos” may be a garden stretch grown with cosmos flowers to attract birds. Let us try our meticulous natures with real words and bigger dictionaries. We mind the time frame.
Isolated word form, whether auditory or visual, is not enough to convey language information. We can work our time frames only in context.
The Simple Past compared with the Present Perfect.