Striven and strived may both be used as the past participle ?? he has strived/striven to achieve success. However, strived or strove are used for, e.g. she strived/strove against the odds to win the cup.
Though I worry a bit that using simple, frequently used, words instead of older, less familiar, words diminishes the richness and variety of the English language and makes older writings very inaccessible to people.
Not that I am in any way an advocate of convoluted language just for the sake of it. There's a fine line to be drawn somewhere.
Two different tenses - "I strove...", but "I have striven..."
I quite like sounding archaic at times - "five-and-twenty to the hour" for example, which was how it was said in my family, sounds that little bit more elegant than "twenty-five to..."
He strives (present) He strove (in the past and has possibly stopped striving) He has striven (in the past and is possibly still striving)
Never "he strived" without the "has" (false and ungrammatical past tense - but hey ho, false and ungrammatical constructions are proliferating, so it could be the definitive past tense this time next year)
As foreign students of English we had to learn looooooong lists of irregular verbs as threesome, 'see, saw, seen', 'strive, strove, striven', etc, etc, etc,
Strive is similar to drive. We say "I was driven" or "I drove." Also "driven" describing somone who is fanatical. Looks like striven could be the passive form? So I would say the simple past is strove. Rather archaic.
I wouldn't refer to these as irregular verbs , but rather "strong, weak and mixed" verbs. Many English native speakers are not aware that ther are categories, but German speakers in particular recognise patterns of vowel changes. We are so illogical though, I drink, I drank but I have drunk. I swim, I swam, I have swum And then we get I think, I thankthought I have thunk (oops) thought!
Janerowena - How about loth, or am I getting it mixed up with sloth. I loathed something but also I am loth to do x.You are prob right with loath. Need to look it up.