i wasn't seen it. -- correct would be "I wasn't seeing it." Example : They tried to point it out, but I wasn't seeing it. i didn't seen it. - correct would be "I didn't see it." Example : They tried pointing it out, but I didn't see it.

Hello Chowchow, These are different tenses, all used in the negative form: 1. I hadn't seen it = past perfect (subject + to have in the past form + not + past participle) 2. I wasn't seeing it = past continuous (subject + to be in the past form + not +_past participle) 3. I haven't seen it = present perfect (subject + to have in the present form + not + past participle) 4. I didn't see it = simple past (subject + to do in the past form + not + infinitive verb) If you wish to learn when to use them properly, feel free to visit my teaching page and send me a message: https://www.italki.com/teacher/4812990 Micha.

Now they sound a little better