PAST TENSE

Past tense is used to explain activity or situation in the past time.

RULE (for verb sentence):
(+) Subject + Verb2 + Object + Adverb of time
(- ) Subject + Did +not + Verb1 + Object + Adverb of time
(?) Did + Subject + Verb1 + Object + Adverb of time + ?
(-?) Did + not + Subject + Object + Adverb Of time+ ?

RULE ( for non verb sentence )
(+) Subject +was/were+ non verb + Object + Adverb of time
(- ) Subject +was/were+ not + non Verb + Object + Adverb of Time
(?) was/were + Subject + non verb + Object + Adverb Of time + ?
(-?)was/were + not + Subject + non verb + Object + Adverb of time +?

Notes:
Adverb of time: -yesterday -2 hours ago
-last week - etc

for Subject (YOU, THEY, WE) use tobe WERE
for Subject (I,HE,SHE, IT) use tobe WAS

Example:
1. I came to your house yesterday (Verb sentence)
2. She was in there last year.