The future tense is "will sprain"
The past tense of "have" is "had."
have in past tense is had
The past tense of have is had.
The past tense of 'spell' is 'spelled'. 'Spelt' is also used in British English.
The past tense of "settle" is spelled as "settled".
The past tense is benefited.
The past tense is traveled.
The past tense is coasted.
The past tense is paddled.
The past tense is hoorayed.
The past tense is gassed.