Roomed is the past tense of room.
remained is past tense.
i do not think there is a past tense of "neat"...."your room is very neat" (present tense) and "her room was very neat" (past tense)...same word.
Room is present tense. I/We/You/They room He/She/It rooms The present participle is rooming, and the past participle is roomed.
This is past continuous tense.
Crowded is the past tense of crowd (to fill a space leaving little room for movement).
She swept her room everyday
The past perfect tense of drag is had dragged.
The past tense of "turn off" is "turned off." For example, "I turned off the lights before leaving the room."
the past tense of am is was and the past tense of has is had
The past tense of "has" is "had" and the past tense of "have" is "had."
Was and were are both the past tense of be. The present tense is: I am he is you are they are The past tense is: I was he was you were they were
"will be" is the future tense of "be". The past tense of "be" is "was/were".