The local grocery store is a sponsor of our school.
The past perfect tense of sponsor is had sponsored.
I/you/we/they sponsor. He/she/it sponsors.
The present participle is sponsoring.
The past tense of sponsor is sponsored.
I sponsor
The past tense would be Frank was your sponsor.
The past tense of "exist" is "existed." The past perfect tense is "had existed."
Frank was your sponsor
The past tense of "bleed" is "bled." The past perfect tense of "bleed" is "had bled."
The past tense of sit is sat. The past perfect tense of sit is had sat.
The past perfect tense of hope is had hoped.
The past perfect tense of "submit" is "had submitted."
The past perfect tense of "confront" is "had confronted."
The past perfect tense is had rung.
The past perfect tense is had burned.
The past perfect tense is had bathed.
The past perfect tense of "learn" is "had learned."