Indicative
Present Indefinite
I alter course
you alter course
he/she/it alters course
we alter course
you alter course
they alter course
Present Continuous
I am altering course
you are altering course
he/she/it is altering course
we are altering course
you are altering course
they are altering course
Present Perfect
I have altered course
you have altered course
he/she/it has altered course
we have altered course
you have altered course
they have altered course
Present Perfect Continuous
I have been altering course
you have been altering course
he/she/it has been altering course
we have been altering course
you have been altering course
they have been altering course
Past Indefinite
I altered course
you altered course
he/she/it altered course
we altered course
you altered course
they altered course
Past Continuous
I was altering course
you were altering course
he/she/it was altering course
we were altering course
you were altering course
they were altering course
Past Perfect
I had altered course
you had altered course
he/she/it had altered course
we had altered course
you had altered course
they had altered course
Past Perfect Continuous
I had been altering course
you had been altering course
he/she/it had been altering course
we had been altering course
you had been altering course
they had been altering course
Future Indefinite
I will alter course
you will alter course
he/she/it will alter course
we will alter course
you will alter course
they will alter course
Future Continuous
I will be altering course
you will be altering course
he/she/it will be altering course
we will be altering course
you will be altering course
they will be altering course
Future Perfect
I will have altered course
you will have altered course
he/she/it will have altered course
we will have altered course
you will have altered course
they will have altered course
Future Perfect Continuous
I will have been altering course
you will have been altering course
he/she/it will have been altering course
we will have been altering course
you will have been altering course
they will have been altering course
Conditional
Conditional Present
I would alter course
you would alter course
he/she/it would alter course
we would alter course
you would alter course
they would alter course
Conditional Present Continuous
I would be altering course
you would be altering course
he/she/it would be altering course
we would be altering course
you would be altering course
they would be altering course
Conditional Perfect
I would have altered course
you would have altered course
he/she/it would have altered course
we would have altered course
you would have altered course
they would have altered course
Conditional Perfect Continuous
I would have been altering course
you would have been altering course
he/she/it would have been altering course
we would have been altering course
you would have been altering course
they would have been altering course