what is the past tense of fell?
356820
if you're talking about fell, as in to fell a tree, then the past tense is felled. If you're talking about fall, then fell is the past tense.
230084
LEARNT???\n\nTHERE????\n\nMaybe you should have paid more attention to your English lessons - I think you mean to say that you "LEARNED" it; & 'THERE' is always a place, I think you mean 'They're'; and you may have a better chance of finding it - now you will be using better references to look for it! GOOD LUCK
180821
Dreamt (past tense of dream)
1090551
The first one is correct because "lately" implies a link between present and past, and that's the "present perfect" (have slept).\nThe second one is completely incorrect because the tense "present" doesn't draw this link between present and past.
841045
Both are...wrong, but not because of "drink" and "drunk". "Drink" and "drunk" are both accepted as the Past Participle of "drink", so this is not the problem ("drank" is the formal one). The problem is with "17th November". It should be "November 17th" or "17th of November". Well, you caught a lot of us, anyway.
1178477
It's "usually" to make the verb used in the sentence past tense and it helps end the sentence more clearly. But there are some occasions when it isn't really really necessary and can just be left off.\n\n我懂了 - I understand.\n我去過了 - I've already went.
306680
wound: 1) as in "to wind"; 2) as in "cut/ injury"
1022563
This means the sentences are in the passive tense, rather than the preferred, active tense.\n\nExample:\n\n"This was the one that I had wanted." - passive\n\n"I wanted this one." - active\n\nMost of the time, active tense is preferred.
288618
There is no reason but sheer convention. It is the way language developed and grew verbs with different past tense forms, which fall into separate groups, such as "think, thought, thought; bring, brought, brought" and "sing, sang, sung, sink, sank, sunk" and quite a few more.
1066677
This sentence is correct.  In this form, "how" is serving as a subordinating conjunction...it is taking the clause "he seemed to be living on a strip..." and making it into a noun clause so that it can serve as as the direct object of "He recalls."\n\nAlso, your use of "lay" is the correct use of the past tense of "lie" (to recline)...as opposed to "laid" (past tense of "lay"--"to place") as someone else suggested...
379428
We have 4 different past tenses in Spanish, and "sabia" (the verb is saber=to know") is conjugated in "preterito imperfecto", with this verb you are saying that "you did already know something, before it happened". However, using "supe" that is conjugated in "preterito perfecto" she is saying that she realized that "it is better" in the past, and she still knows so far that "it is better", but she can forget that fact tomorrow.
6161
Falling On The Ground Laughing My A** Off\n\nmore popular version is FOTFLMAO:\n\nFalling On The Floor Laughing My A** Off
122609
It is a result of the fall.
439169
Verb form\npetted\npast tense and past participle of the verb to pet
770224
"Liaison" is a noun, not a verb. Nouns do not have past tenses.\nThe verb from "liaison" is "liaise" and the past tense of that would be "liaised".
771328
John, while James had had "had", had had "had had"; "had had" had had a better effect on the teacher...\n\nI include ellipses because the past perfect is not a stand-alone tense; it doesn't make sense to use it without another clause in the simple past.
41950
If you are referring to time or distance, use “past”: “the team performed well in the past,” “the police car drove past the suspect’s house.” If you are referring to the action of passing, however, you need to use “passed“: “when John passed the gravy, he spilled it on his lap,” “the teacher was astonished that none of the students had passed the test.”