"Had thought"
The past tense of "think" with a helping verb is "had thought." For example, "I had thought about it before."
The simple past tense of the verb "think" is "thought."
The past tense of the verb "to think" is "thought."
The past tense verb for "I think too much" is "I thought too much."
"Thought" is the past tense form of the verb "to think."
The past tense of think is thought.
The past tense verb of "went" with a helping verb is "had gone."
The past tense of "come" with a helping verb is "had come."
The past tense form of "spent" with a helping verb is "had spent."
The word "ride" in the past tense with a helping verb is "had ridden."
It is not a helping verb. It is a be verb, a past tense plural be verb.
Did is already a helping verb. It can be used with the past participle of do making 'had done'.
Ate
Help is a verb. Help/helps is present tense. The past tense and past participle is helped, and the present participle is helping.
The past tense with a helping verb of "bring" is "brought." For example, "I brought my lunch to work yesterday."
Sally had finished her homework. (helping verb had, past tense of have)
The simple past tense of the verb "think" is "thought."
The past tense of the verb "to think" is "thought."