You've already aswered the question: it's spilt.
I spilt
You spilt
He/She spilt
We spilt
They spilt
The past tense form of spill is spilled (or spilt in British English).
The US form is usually spilled. The British English form is spilt.
The past tense and adjective "spilt" is still used in the UK. The word used in the US is "spilled."
One way to use "spilt" in a sentence is: "I accidentally spilt my drink on the table." In this sentence, "spilt" is the past tense of "spill," meaning to accidentally pour or let something flow out of its container.
Spilt, or spilled, is the past participle of spill. In the future, I will spill milk. In the present, I am spilling milk. In the past, I have spilled the milk -- it has been spilt.
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".
The past tense of "she do" is "she did."
The word "were" is past tense. It is the past tense of the verb "to be."
The past tense of "will" is "would" and the past tense of "be" is "was" or "were" depending on the subject (singular or plural).