How to write this in past tense?

It was snowing outside the school building. I put on my warm jacket, and my girlfriend Melissa,  who put on warm clothes as well, shivered at the thought of cold outside. We left the building and walked hand and hand through snow-covered streets that's all ill give you I hope you can figure out the rest

past tense words- sang, was singing, had already sung, had been singing visited, had, were, Simple Form: Although most past tense verbs end in -ed, certain verbs have irregular past tense forms that do not follow this rule.Past Progressive Form: Use was/were with the verb form ending in -ing.Past Perfect Form: Use had with the past participle of the verb.Past Perfect Progressive Form: This tense is most often created by using had been and the present perfect of the verb (most often the verb form ending in -ing).

Be, have, and do are the most commonly used irregular verbs, but ESL Lounge has a large list of English verbs with irregular past tense forms. Unfortunately, memorizing these irregular verbs is the only way to completely master the past tense.