caught
Present simple always uses the base form of the verb except for he/she/it when the form is verb+ -s.Catch - catchesI catch the bus to work everyday. She catches a cold easily.
It can be, when it means either "infectious" or "catchy" (infectiously popular).The word catching is the present participle of the verb "to catch." It can be a verb form, an adjective, or a noun (gerund).
The past tense is abused.
The past form of the word "flow" is "flowed."
The past simple form of "do" is "did."
The past participle form of the word "steal" is "stolen."
The past participle form of the word "use" is "used."
sleep is the base form slept is the past simple form slept is the past participle.
The simple past and past participle are both received.
The past tense form of the word "apply" is "applied".
The past participle form of the word "stay" is "stayed."
The past participle form of the word "sing" is "sung."