時(とき)Cuando

Both とき and 折には express the time of an action or event, but differ in nuance and formality. とき is common in everyday conversation and broadly used, like the English 'when'. 折には is more formal, similar to 'on the occasion of', and is often used for special or less frequent (and often positive) events.

とき expresses the time of an action or event, like the English 'when'. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot'. In contrast, の間に is used with nouns, and describes a period within which something happens, similar to the English 'while' or 'during', e.g. 冬休みの間に ('during winter break').

とき expresses the time of an action or event, like the English 'when'. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot'. In contrast, ながら is used when doing something while performing another action. It is used only with verbs, and unlike とき, the subject of both phrases must be the same, e.g. 音楽を聴きながら走る 'listen to music while running'.

とき expresses the time of an action or event, like 'when' in English. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot'. In contrast, ているところ uses the verb in て-form and emphasizes being in the middle of an action, often with a sense of being busy or focused, e.g. 晩ご飯を食べているところです ('I'm right in the middle of eating dinner.').

とき expresses the time of an action or event, like 'when' in English. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot', and can describe one-time or repeated actions. うちに means 'while' or 'during,' often with the nuance that it's the ideal or only time to act, e.g. 熱いうちに食べてね ('Eat it while it's hot.').

とき expresses the time of an action or event, like 'when' in English. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot', and can describe one-time or repeated actions. 中 attaches to nouns and describes an action or state in progress, e.g. 勉強中 'now studying' or 使用中 'currently in use'.

とき marks the time of an action or event, like 'when' in English, e.g. 雨の時 or 雨が降るとき 'when it rains'. ことがある expresses something that happens occasionally, e.g. 雨が降ることがある ('There are occasions when it rains.'). Because they express different concepts, the two can be combined, as in: 時間がないとき、コンビニ弁当を食べることがある ('When I don't have time, there are occasions when I eat a convenience store lunch box.').

とき expresses the general time of an action or event, like 'when' in English. と同時に means 'at the same time as' and emphasizes simultaneity. For example, 帰ってきた時 means 'when (I) came home', while 帰ってきたと同時に means 'the moment (I) came home' or 'as soon as (I) came home'.

とき expresses the general time of an action or event, like 'when' in English. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot', and can describe one-time or repeated actions. In contrast, 最中に describes something happening right in the middle of another action/event, e.g. 食事の最中に電話がなった ('My phone rang while I was in the middle of eating.').

とき expresses the time of an action or event, like the English 'when'. It can be used with nouns as in 雨の時 'when it rains', verbs as in 父が帰ってきた時 'when Dad came home', or adjectives as in 暑い時 'when it's hot'. In contrast, ているあいだに uses the て-form of verbs and refers to a period during which something occurs, e.g. 晩ご飯を食べている間に、父が帰ってきました ('While I was eating dinner, my father came home.').

Both ごろ (or ころ) and とき indicate when something happened, but with key differences. ごろ is less specific and means 'around that time', as in 子どもの頃 'in my childhood days'. It also works as a suffix with time words, e.g. 11時ごろ 'around 11 o'clock', while とき cannot be used this way. By contrast, とき has a more precise nuance, as in 子どもの時 'when I was a child'.

Both とき and 際に express the time of an action or event, but with different nuances and levels of formality. とき is common in everyday conversation and broadly used, like the English 'when'. 際に is more formal and often appears in official contexts, such as instructions, advice, or warnings related to specific events.