💡 'This morning' is still open — it is 9am now. We use present perfect. 'Sent' is past simple — wrong for an open time. 'Send' is present simple. 'Has sent' needs 'he/she/it'.

🇮🇹 Note for Italian speakers: In Italian you can use 'passato prossimo' here, which feels similar. But do not use past simple in English when the time period is still open.

💡 'This week' is still open. We use present perfect. 'Checked' is past simple — only correct when the week is finished. 'Check' is present simple. 'Have checked' needs 'I/you/we/they'.

🇮🇹 Note for Italian speakers: 'She' needs 'has', not 'have'. Italian 'avere' changes too — 'ha' not 'ho'.

💡 The lesson is still open — 'yet' shows this. We use present perfect negative. 'Didn't finish' is past simple — the lesson is not over. 'Don't finish' is present simple. 'Hasn't finished' needs 'he/she/it'.

💡 'Since January' shows a state that started in the past and continues now. We use present perfect. 'Am' is present simple — wrong for a past-to-now state. 'Was' is past simple — it closes the period. 'Been' has no auxiliary.

🇮🇹 Note for Italian speakers: A very common error is 'I am here since January'. In English you must use 'have been', not 'am'.

💡 'This month' is still open. We use present perfect. 'Gave' is past simple — only for a finished month. 'Gives' is present simple. 'Have given' needs 'I/you/we/they'.

💡 'For two weeks' with a continuing situation needs present perfect. We use 'have studied'. 'Study' is present simple. 'Studied' is past simple — it closes the period. 'Are studying' is present continuous — it does not show duration from the past.

🇮🇹 Note for Italian speakers: Do not say 'They study for two weeks'. In English you must use present perfect to show duration that continues now.

💡 'How long' asks about duration from the past to now. We use present perfect. 'Are you' is present simple — a very common error. 'Were you' is past simple. 'You have been' has wrong word order for a question.

🇮🇹 Note for Italian speakers: Do not say 'How long are you in this class?' In English, 'how long' always needs present perfect here.

💡 'Today' is still open — it is before midday. We use present perfect. 'Drank' is past simple — wrong for an open day. 'Drink' is present simple. 'Have drank' is a common spelling error — the correct past participle is 'drunk'.

💡 'Since last January' shows she started in the past and still works here now. We use present perfect. 'Works' is present simple. 'Worked' is past simple — it closes the period. 'Is working' is present continuous — it does not show duration from the past.

🇮🇹 Note for Italian speakers: 'Since' always goes with present perfect, not present simple. Never say 'She works here since last January'.

💡 'This week' is still open. We use present perfect negative. 'Didn't see' is past simple — only for a finished week. 'Don't see' is present simple. 'Hasn't seen' needs 'he/she/it'.

💡 'Today' is still open. We use present perfect with 'already'. 'Already read' is past simple without auxiliary. 'Already have read' has wrong word order — 'already' goes between 'have' and the past participle. 'Readed' is not a word — 'read' is irregular.

💡 'For ten years' with a continuing situation needs present perfect. He still lives in Rome now. 'Lives' is present simple. 'Lived' is past simple — it closes the period. 'Is living' is present continuous — it does not show duration from the past.

🇮🇹 Note for Italian speakers: Do not say 'He lives in Rome for ten years'. In English you must use 'has lived' to show a period that continues now.

💡 'So far' shows the exercise is still open. We use present perfect. 'Wrote' is past simple — only for a finished exercise. 'Write' is present simple. 'Has written' needs 'he/she/it'.

💡 'This week' is still open. We use present perfect. 'Learned' is past simple — only for a finished week. 'Learn' is present simple. 'Was learning' is past continuous — it does not fit an open period.

🇮🇹 Note for Italian speakers: 'This week' is an open signal. Always use present perfect with it.

💡 'Since March' shows a state from the past to now. We use present perfect. 'Is' is present simple — a very common Italian error. 'Was' is past simple — it closes the period. 'Has being' is not a correct form.

🇮🇹 Note for Italian speakers: Do not say 'She is in this job since March'. You must use 'has been'.

💡 'How long' asks about duration from the past to now. We use present perfect. 'Do you live' is present simple — a very common error. 'Did you live' is past simple — it suggests you left. 'You have lived' has wrong word order for a question.

💡 'Today' is still open. We use present perfect. 'Had' is past simple — only for a finished day. 'Have' is present simple. 'Was having' is past continuous — it does not count completed actions in an open period.

💡 'For two lessons now' shows duration that continues. We use present perfect. 'Practise' is present simple. 'Practised' is past simple — it closes the period. 'Are practising' is present continuous — it does not show duration from the past.

🇮🇹 Note for Italian speakers: 'For' with a continuing action always needs present perfect in English.

💡 'Yet' shows the lesson is still open. We use present perfect negative. 'Didn't finish' is past simple — the lesson is not over. 'Doesn't finish' is present simple. 'Haven't finished' needs 'I/you/we/they'.

💡 'Since the start of this lesson' shows a state from the past to now. We use present perfect. 'Understand' is present simple. 'Understood' is past simple — it closes the period. 'Am understanding' is not a natural form for a state verb.

🇮🇹 Note for Italian speakers: 'Since' always needs present perfect. Never use present simple with 'since'.

💡 The result is relevant now — she uses them correctly. We use present perfect. 'Learned' is past simple — it does not connect to the present result. 'Learns' is present simple. 'Was learning' is past continuous — it does not show a completed result.

💡 'For six months' with a continuing job needs present perfect. I still work there now. 'Work' is present simple — a very common Italian error. 'Worked' is past simple — it closes the period. 'Am working' is present continuous — it does not show duration from the past.

🇮🇹 Note for Italian speakers: Do not say 'I work here for six months'. Use 'have worked' to show the period continues now.

💡 'Recently' is an open time signal — it connects to the present. We use present perfect. 'Talked' is past simple — it closes the time. 'Talk' is present simple. 'Were talking' is past continuous — it does not fit 'recently' as a present-to-now signal.

💡 'How long' asks about duration from the past to now. We use present perfect. 'Do you study' is present simple — a very common error with 'how long'. 'Did you study' is past simple — it suggests you stopped. 'Are you studying' is present continuous — it does not show duration.

🇮🇹 Note for Italian speakers: 'How long' with a continuing action always needs present perfect. Never say 'How long do you study it?'

💡 'Today' is still open. We use present perfect with 'already'. 'Already did' is past simple without auxiliary. 'Do already' has wrong word order and is present simple. 'Have already did' uses the base form — the past participle of 'do' is 'done'.