I have difficulty in past tense conjugation. I'd like to know how you practice.
Aside from using this website of course. What I do is learn some few things here then talk to some friends from Spanish speaking countries. I sometimes request from the to review my work and we converse, even though I am wrong and I cannot express myself correctly at the moment.
I'm assuming you're referring to the preterite tense verbs.
What I used to do was pick a few regular verbs from each group of verbs (i.e., -ar, -er, and -ir), and I would write out the conjugations for a few them. I would sometimes use reflexive verbs just to practice writing the reflexive pronouns, and then I'd have an online conjugator check me. I would read them aloud WITH THE PRONOUNS. (Yo nadé... tú nadaste... etc.). I would do this for a few days, then I'd google online quizzes and what not that would check me as well.
The preterite can get a little weird with irregular verbs, but you'll probably start to see a pattern. I'd learn estar, ser/ir (they're the same in the preterite tense), tener, and hacer first. Those are the most important—to me, at least—in the preterite tense, and they don't have changes in meaning. Poder as well. I'd study them, and then I'd go for some of the other verbs like venir, saber, querer, poner, etc. Some verbs have meaning changes in the preterite tense, so make sure to read on that. (In my opinion, the meaning changes are INCREDIBLY major, but they are important and useful to understand.)
Finally I'd look at the spell-changing verbs in the preterite. The way they work is fairly simple. The third person, plural and singular, change slightly. It's nothing complicated, but it can take some time to get used to.
Thankfully, the other indicative past tense is completely regular except for three verbs.
If you have questions, don't be afraid to ask! Hope I helped.
I use a textbook and do exercises. Make sure the book uses an answer key and you will recognize patterns of the past regular and irregular tenses. I found this to be the quickest way to learn tense based grammar for me. Aside from that, grab a book in the target language to read and listen to a lot of content, you'll quickly recognize the textbook patterns in real world language.
Concerning irregulars, I usually write a list and refer to it often. It seems weird at first but eventually it will become automatic.
There is a fine app called Verbos by Verb Trainer where you can test yourself any verb any tense. You manage the settings and edit the verb list. You also have access to full conjugation tables. It is self contained and no internet required. It's not the newest tool in the box, but it is effective. I'm sure there are others.
I don't understand why someone down voted this. This is a site for learners.
These are very good advises you have given me. I found a website where I can practice conjugations and it's uber easy now.
Here it is: http://www.spaleon.com/pret.php
Is Spanish an easy language to learn? I speak other languages like Filipino, English and Japanese. For some reason, Japanese is easier compared to this one.