I can influence you can influence he can influence we can influence you can influence they can influence
V-ing form
I can be influencing you can be influencing he can be influencing we can be influencing you can be influencing they can be influencing
Perfect
I can have influenced you can have influenced he can have influenced we can have influenced you can have influenced they can have influenced
V-ing perfect
I can have been influencing you can have been influencing he can have been influencing we can have been influencing you can have been influencing they can have been influencing
Negation
Simple form
I can't influence you can't influence he can't influence we can't influence you can't influence they can't influence
V-ing form
I can't be influencing you can't be influencing he can't be influencing we can't be influencing you can't be influencing they can't be influencing
Perfect
I can't have influenced you can't have influenced he can't have influenced we can't have influenced you can't have influenced they can't have influenced
V-ing perfect
I can't have been influencing you can't have been influencing he can't have been influencing we can't have been influencing you can't have been influencing they can't have been influencing
Interrogative form
Simple form
can I influence? can you influence? can he influence? can we influence? can you influence? can they influence?
V-ing form
can I be influencing? can you be influencing? can he be influencing? can we be influencing? can you be influencing? can they be influencing?
Perfect
can I have influenced? can you have influenced? can he have influenced? can we have influenced? can you have influenced? can they have influenced?
V-ing perfect
can I have been influencing? can you have been influencing? can he have been influencing? can we have been influencing? can you have been influencing? can they have been influencing?
Interro-negative form
Simple form
can't I influence? can't you influence? can't he influence? can't we influence? can't you influence? can't they influence?
V-ing form
can't I be influencing? can't you be influencing? can't he be influencing? can't we be influencing? can't you be influencing? can't they be influencing?
Perfect
can't I have influenced? can't you have influenced? can't he have influenced? can't we have influenced? can't you have influenced? can't they have influenced?
V-ing perfect
can't I have been influencing? can't you have been influencing? can't he have been influencing? can't we have been influencing? can't you have been influencing? can't they have been influencing?