The past tense of "complain" is "complained."
Complain is present tense. The past tense is complained.
"Complain" in past tense is "complained" and in present tense is "complains."
The past tense of "complain" is "complained" and the past participle is also "complained."
The past tense of "exist" is "existed." The past perfect tense is "had existed."
The past tense of "complain" is "complained."
Complain is present tense. The past tense is complained.
"Complain" in past tense is "complained" and in present tense is "complains."
The past tense of "complain" is "complained" and the past participle is also "complained."
The past tense of "exist" is "existed." The past perfect tense is "had existed."
The past tense of sit is sat. The past perfect tense of sit is had sat.
The past tense of "bleed" is "bled." The past perfect tense of "bleed" is "had bled."
The past perfect tense is had set.
The past perfect tense is had rung.
The past perfect tense is had bathed.
The past perfect tense of "confront" is "had confronted."
The past perfect tense of "learn" is "had learned."