Took is the past tense of take.With had you use the past participle form. The past participle of take is taken.He had taken the car and left.
The auxiliary verb "have" creates the perfect tenses and is used with the past participle of a verb. The word not is an adverb used to express the negative. It is used between the auxiliary verb and the verb.Example:Verb take, past tense took, past participle taken -Past Perfect : "He had taken the money from the safe."Past Perfect : "He had not taken the money from the safe."The continuous tenses use the present participle(-ing) form -Past perfect continuous : "He had been taking his medicine."Past perfect continuous : "He had not been taking his medicine."
The past tense of begin is began (simple past) or had begun (past perfect).Are you going to begin doing your homework?I began my homework ten minutes ago.I already have begun.Whilst the past tense of begin is indeed 'began', it is incorrect grammar to say "I have already began". In this sense, you would need to use the present perfect tense, which is "I have already begun".The correct way to use the past tense of 'begin' (i.e. began) is to say, "I began my homework ten minutes ago."
'Who' is a pronoun, it doesn't have a past tense. But you can use the word "was" as in "who was on the phone?".
When you are talking about something that happened in the past and is now finished - past simple. see -- I saw Jack last night. go -- We went to the cinema. begin -- The movie began on time.
The past participle form of the word "use" is "used."
"Use" is a regular verb; therefore, its past participle is "used".
"ridden" is the past participle of "rode"
Said.
Chosen is the past participle. A past participle is used to indicate a completed action or state.
Oral means speaking. It is a posh word that detectives use.
The present participle of the verb "use" is "using" and the past participle is "used."
I/you/we/they suppose. He/she/it supposes. The present participle is supposing.
The word 'interrupted' is the past participle, past tense of the verb to interrupt. The past participle of the verb also functions as an adjective.verb: She was interrupted when the alarm randomly went off.adjective: An auto accident resulted in an interrupted vacation.
Used (e.g "It had been used for...", "John was used", etc.)
All are past and past participle in tense.
The word 'paneled' is the past participle, past tense of the verb to panel. The past participle of the verb also functions as an adjective.Examples:The original owners of the house paneled the library. (verb)The paneled library looks very comfortable. (adjective)