Das Verb "BE"

Present Simple
I You He She It We You They	am are is is is are are are

Past Simple
I You He She It We You They	was were was was was were were were

Future Simple
I You He She It We You They	will be will be will be will be will be will be will be will be

"is going to"
I You He She It We You They	am going to be are going to be is going to be is going to be is going to be are going to be are going to be are going to be

Present Perfect
I You He She It We You They	have been have been has been has been has been have been have been have been

Past Perfect
I You He She It We You They	had been had been had been had been had been had been had been had been

Modal Verbs - must
I You He She It We You They	must be must be must be must be must be must be must be must be

Modal Verbs - can
I You He She It We You They	can be can be can be can be can be can be can be can be

Modal Verbs - should
I You He She It We You They	should be should be should be should be should be should be should be should be