English Language Clinic -UI

When asking questions, it is correct to say, 'Do you understand? or 'Did you understand?' and incorrect to say, 'Do you understood?' or 'Did you understood?'

'Did you understood' is ungrammatical because it improperly combines the past tense auxiliary verb 'did' with the past tense verb 'understood.' In English, when forming past tense questions with 'did,' the main verb should be in its base form, which is 'understand,' making the correct construction 'Did you understand?'

Hence, 'Do you understand?' could be used in the course of an interaction, while 'Did you understand?' could be used after to refer to the previous interaction.

It is incorrect to say, ‘Have your sit/ Have a sit’, but correct to say, ‘Have your seat/ Have a seat’.
‘Have/take a seat’ means ‘to sit down’.
Come in and have a seat. LASD