In most cases, the past tense is the same on both sides of the Atlantic. "I walked the dog" is correct in both, as is "I ran to school". One word which has different past tenses is Get, which in America has the past tenses Got or Gotten, but in Britain only has the past tense Got. For example:
Britain:
I get cold.
I got cold.
I would have got cold.
America:
I get warm.
I got warm.
I would have gotten warm.
One exception: in Britain we do say "Ill-gotten gains", not "Ill-got gains".
The past form of "learn" in British English is "learnt," while in American English it is "learned." Similarly, the past form of "dream" in British English is "dreamt," whereas in American English it is "dreamed." These differences in spelling are common between British and American English.
present: recognise (British English), recognize (American English)past: recognised (British English), recognized(American English)
The past tense of label is "labeled" in American English, or "labelled" in British English.
The past participle of "get up" is "gotten up" in American English and "got up" in British English.
The past tense of "cancel" is spelled "cancelled" in British English and "canceled" in American English.
The past tense of "burn" is "burned" in American English and "burnt" in British English. The past participle is also "burned" in American English and "burnt" in British English.
The British English past tense is misspelt. The American English past tense is misspelled.
present: recognise (British English), recognize (American English)past: recognised (British English), recognized(American English)
The past tense of label is "labeled" in American English, or "labelled" in British English.
The past participle of "get up" is "gotten up" in American English and "got up" in British English.
The past tense of "cancel" is spelled "cancelled" in British English and "canceled" in American English.
The past tense of "burn" is "burned" in American English and "burnt" in British English. The past participle is also "burned" in American English and "burnt" in British English.
The past tense of "learn" is "learned" in American English and "learnt" in British English.
The past participle of "get" is "got" in British English and "gotten" in American English.
The past tense form of spill is spilled (or spilt in British English).
The past tense for "learn" is "learned" in American English and "learnt" in British English.
The past participle of "spell" is "spelled" in American English, and "spelt" in British English.
In American English: analyzed. In British English: analysed.