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