Irregular Verb: understand

Present Simple


I understand	Do I understand?	I don't understand
You understand	Do you understand?	You don't understand
He understands	Does he understand?	He doesn't understand
She understands	Does she understand?	She doesn't understand
It understands	Does it understand?	It doesn't understand
We understand	Do we understand?	We don't understand
They understand	Do they understand?	They don't understand

Past Simple


I understood	Did I understand?	I didn't understand
You understood	Did you understand?	You didn't understand
He understood	Did he understand?	He didn't understand
She understood	Did she understand?	She didn't understand
It understood	Did it understand?	It didn't understand
We understood	Did we understand?	We didn't understand
They understood	Did they understand?	They didn't understand

Present Continuous


I am understanding	Am I understanding?	I'm not understanding
You are understanding	Are you understanding?	You aren't understanding
He is understanding	Is he understanding?	He isn't understanding
She is understanding	Is she understanding?	She isn't understanding
It is understanding	Is it understanding?	It isn't understanding
We are understanding	Are we understanding?	We aren't understanding
They are understanding	Are they understanding?	They aren't understanding

Past Continuous


I was understanding	Was I understanding?	I wasn't understanding
You were understanding	Were you understanding?	You weren't understanding
He was understanding	Was he understanding?	He wasn't understanding
She was understanding	Was she understanding?	She wasn't understanding
It was understanding	Was it understanding?	It wasn't understanding
We were understanding	Were we understanding?	We weren't understanding
They were understanding	Were they understanding?	They weren't understanding

Present Perfect


I have understood	Have I understood?	I haven't understood
You have understood	Have you understood?	You haven't understood
He has understood	Has he understood?	He hasn't understood
She has understood	Has she understood?	She hasn't understood
It has understood	Has it understood?	It hasn't understood
We have understood	Have we understood?	We haven't understood
They have understood	Have they understood?	They haven't understood

Past Perfect


I had understood	Had I understood?	I hadn't understood
You had understood	Had you understood?	You hadn't understood
He had understood	Had he understood?	He hadn't understood
She had understood	Had she understood?	She hadn't understood
It had understood	Had it understood?	It hadn't understood
We had understood	Had we understood?	We hadn't understood
They had understood	Had they understood?	They hadn't understood

Simple Future


I will understand	Will I understand?	I won't understand
You will understand	Will you understand?	You won't understand
He will understand	Will he understand?	He won't understand
She will understand	Will she understand?	She won't understand
It will understand	Will it understand?	It won't understand
We will understand	Will we understand?	We won't understand
They will understand	Will they understand?	They won't understand

Going To Future


I am going to understand	Am I going to understand?	I'm not going to understand
You are going to understand	Are you going to understand?	You aren't going to understand
He is going to understand	Is he going to understand?	He isn't going to understand
She is going to understand	Is she going to understand?	She isn't going to understand
It is going to understand	Is it going to understand?	It isn't going to understand
We are going to understand	Are we going to understand?	We aren't going to understand
They are going to understand	Are they going to understand?	They aren't going to understand

Tenses:

Present Simple
Past Simple
Present Continuous
Past Continuous
Present Perfect
Past Perfect
Simple Future
Going To Future