Sentence pattern have not + verb-ed:【verb た form + ことがありません】
On this page, you can learn Japanese grammar for telling something you have not done before.
たForm
Sentence pattern 
Sentence pattern have not been to:【に行ったことがありません】
On this page, you can learn Japanese grammar for 'have not been to'.
Sentence pattern 【Japanese grammar: verb た form + ことがあります (kotoga arimasu) = have + verb-ed】Let’s learn how to talk about experiences in Japanese.
On this page, you can learn Japanese grammar for expressing your experience.
Sentence pattern 【Japanese grammar】に行ったことがあります (ni ittakotoga arimasu) = have been to
On this page, you can learn how to say 'have been to somewhere' or 'have not been to somewhere' in Japanese.
Form 【Japanese Grammar: Form】Verb たForm
たForm is used with various grammar patterns. It is also called Plain Past Positive Form, which you can use to describe what happened in the past. たForm can be made from てForm.
Sentence pattern 【Japanese Grammar】たり、たりします (tari, tarishimasu) = verb and verb: how to join or list verbs, using た form
Let's learn how to say the following sentences in Japanese: I read books and watch TV. I talk with friends and play games. My father reads newspaper and drinks coffee. My mother makes cakes and listen to music.
Difference 【Difference】between ‘verb てform’ and ‘verb たform + り’
Both of them mean "I eat peach, drink water and read books." However, the first sentence tells that the person does those things in that order.