[pacerier]

is it that ボブは勉強してばかりいる means something like "Bob is always studying (and he's really always studying) and im not pleased with it" whereas ボブは勉強ばかりだ/ボブは勉強するばかりだ means "Bob is a nerd (though bob may not always be studying)".

regarding はず, will it sound weird if we add きっと in front as such: きっとボブは勉強してばかりいる to mean "Both is surely supposed to go" and "I'm very sure Bob will go"?


also, is it true that this sentence (1):今日電車で行ったほうがいい is in the present tense despite 「行った」. if so what will be the difference between (1) and 今日電車で行くほうがいい