Regular verb of alter | Present, Past, & Past Participle form of alter

Regular verb of alter / Weak verb of alter:

Meaning of alter: to change

The infinitive form: to alter

Present form:

1. I alter
2. you alter
3. he alters
4. we alter
5. you alter
6. they alter

Present continuous form:

1. I am altering
2. you are altering
3. he is altering
4. we are altering
5. you are altering
6. they are altering

Present perfect form:

1. I have altered
2. you have altered
3. he has altered
4. we have altered
5. you have altered
6. they have altered

Present perfect continuous form:

1. I have been altering
2. you have been altering
3. he has been altering
4. we have been altering
5. you have been altering
6. they have been altering

Past form: 

1. I altered
2. you altered
3. he altered
4. we altered
5. you altered
6. they altered

Past continuous from:

1. I was altering
2. you were altering
3. he was altering
4. we were altering
5. you were altering
6. they were altering

Past perfect form:

1. I had altered
2. you had altered
3. he had altered
4. we had altered
5. you had altered
6. they had altered

Past perfect continuous from:

1. I had been altering
2. you had been altering
3. he had been altering
4. we had been altering
5. you had been altering
6. they had been altering

Future from:

1. I will alter
2. you will alter
3. he will alter
4. we will alter
5. you will alter
6. they will alter

Future continuous form:

1. I will be altering
2. you will be altering
3. he will be altering
4. we will be altering
5. you will be altering
6. they will be altering

Future perfect form:

1. I will have altered
2. you will have altered
3. he will have altered
4. we will have altered
5. you will have altered
6. they will have altered

Future perfect continuous form:

1. I will have been altering
2. you will have been altering
3. he will have been altering
4. we will have been altering
5. you will have been altering
6. they will have been altering

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