English verb conjugation
CAN FRUSTRATE

Regular verb: frustrate - frustrated - frustrated

Affirmation

Simple form	V-ing form
I can frustrate you can frustrate he can frustrate we can frustrate you can frustrate they can frustrate	I can be frustrating you can be frustrating he can be frustrating we can be frustrating you can be frustrating they can be frustrating
Perfect	V-ing perfect
I can have frustrated you can have frustrated he can have frustrated we can have frustrated you can have frustrated they can have frustrated	I can have been frustrating you can have been frustrating he can have been frustrating we can have been frustrating you can have been frustrating they can have been frustrating

Negation

Simple form	V-ing form
I cannot frustrate you cannot frustrate he cannot frustrate we cannot frustrate you cannot frustrate they cannot frustrate	I cannot be frustrating you cannot be frustrating he cannot be frustrating we cannot be frustrating you cannot be frustrating they cannot be frustrating
Perfect	V-ing perfect
I cannot have frustrated you cannot have frustrated he cannot have frustrated we cannot have frustrated you cannot have frustrated they cannot have frustrated	I cannot have been frustrating you cannot have been frustrating he cannot have been frustrating we cannot have been frustrating you cannot have been frustrating they cannot have been frustrating

Interrogative form

Simple form	V-ing form
can I frustrate? can you frustrate? can he frustrate? can we frustrate? can you frustrate? can they frustrate?	can I be frustrating? can you be frustrating? can he be frustrating? can we be frustrating? can you be frustrating? can they be frustrating?
Perfect	V-ing perfect
can I have frustrated? can you have frustrated? can he have frustrated? can we have frustrated? can you have frustrated? can they have frustrated?	can I have been frustrating? can you have been frustrating? can he have been frustrating? can we have been frustrating? can you have been frustrating? can they have been frustrating?

Interro-negative form

Simple form	V-ing form
can I not frustrate? can you not frustrate? can he not frustrate? can we not frustrate? can you not frustrate? can they not frustrate?	can I not be frustrating? can you not be frustrating? can he not be frustrating? can we not be frustrating? can you not be frustrating? can they not be frustrating?
Perfect	V-ing perfect
can I not have frustrated? can you not have frustrated? can he not have frustrated? can we not have frustrated? can you not have frustrated? can they not have frustrated?	can I not have been frustrating? can you not have been frustrating? can he not have been frustrating? can we not have been frustrating? can you not have been frustrating? can they not have been frustrating?