It depends on the specifics. Sometimes it should be replaced with 'did', such as in the sentence "We will learn this" which is the future tense of "We did learn this", but another past tense version of that is "We learnt this already" or "We've learnt this already", so it depends on context.
The past tense of "replace" is "replaced."
"Made" is the past tense of the verb "make," used to describe something that was created or produced in the past.
"met" is a past tense of "to meet", so a request for you to do something in the past doesn't make sense. Replace "met" by "meet".
Made means to have built of produced something. It is the past tense of make.
The simple past and past participle are both made.
Past tense is where you change the word to make it have already happened. Present tense is where it is happing right now. Examples: I am drawing something.-> I drew something. I am eating pie.-> I ate pie.
"Can", as in is able to, would be "could" in the past tense. "Can", as in to jar something, would be "canned" in the past tense.
The past tense is made.
"Lost" is a past tense verb. It is the past tense form of "lose" which means to be unable to find something.
The past tense of "meet" is "met." For example: "I met my friend for lunch yesterday."
The present tense expresses something that is happening now whilst the past tense expresses something that has already happened.
Yes it is the past tense of make.