You can also express the in a specific form that represents Past Repetition referred to as the "would always" to express a habit in the past instead of the present. There is no "tense" name for this but is used in a way very similar to Simple Past. Just think of it as adding a modal to a Simple Past sentence where the modal observes the tense of the verb and the verb itself reverts to the infinitive. Simple Past: She always ran in the morning. "would always" She would always run in the morning. You can replace "always" with other frequency words like often, occasionally, seldom, constantly or, in this case, usually. The sentence would then read: She would usually have a sandwich for lunch. Where "She usually has a sandwich for lunch" expresses a habit in the present, "she would usually have a sandwich for lunch" expresses that same habit, but in the past.

Do you mean a past habit? "Granny used to have a sandwich for lunch."

the past tense of has is had, for everybody (I, you and so on). The sentence should be "Grandma usually had a sandwich for lunch."

You see.....Note: Sorry, I was writing TOO fast.

Привет Влада, just a little personal advice about language learning: "Try to don't learn grammar out of context" it's tedious, boring and take too bloody long!!! It's a better idea to understand how to use any tenses by writing fun essays and using them. If you have a particular doubt, just type that sentence in google and you'll find an example of someone else (try to understand the concept of that person) and then you'll be able to use that tense in your particular essay. до свидания! Note: Sorry, I was writing to fast.