Verb conjugation of "succeed" in English

Work was performed only in June, July, August and September. In October and November, Erik has been waiting for Katja's visit and Sabine was on maternal leave after Christmas and New Year.
We have learned that some tenses, such as Present Tense are easier and not as complex as others. Is that right? In my opinion, tenses in English are much easier than in the Spanish language.
We may be able to write emails. This is my email address. I am giving it because I rarely online at Vocabulix! My email is: ----. Next time I will send longer text messages for you to translate. OK?