can concatenate
Regular verb: concatenate - concatenated- concatenated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can concatenate
you can concatenate
he can concatenate
we can concatenate
you can concatenate
they can concatenate 	I can be concatenating
you can be concatenating
he can be concatenating
we can be concatenating
you can be concatenating
they can be concatenating	I can have concatenated
you can have concatenated
he can have concatenated
we can have concatenated
you can have concatenated
they can have concatenated	I can have been concatenating
you can have been concatenating
he can have been concatenating
we can have been concatenating
you can have been concatenating
they can have been concatenating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't concatenate
you can't concatenate
he can't concatenate
we can't concatenate
you can't concatenate
they can't concatenate 	I can't be concatenating
you can't be concatenating
he can't be concatenating
we can't be concatenating
you can't be concatenating
they can't be concatenating	I can't have concatenated
you can't have concatenated
he can't have concatenated
we can't have concatenated
you can't have concatenated
they can't have concatenated	I can't have been concatenating
you can't have been concatenating
he can't have been concatenating
we can't have been concatenating
you can't have been concatenating
they can't have been concatenating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I concatenate?
can you concatenate?
can he concatenate?
can we concatenate?
can you concatenate?
can they concatenate? 	can I be concatenating?
can you be concatenating?
can he be concatenating?
can we be concatenating?
can you be concatenating?
can they be concatenating? 	can I have concatenated?
can you have concatenated?
can he have concatenated?
can we have concatenated?
can you have concatenated?
can they have concatenated? 	can I have been concatenating?
can you have been concatenating?
can he have been concatenating?
can we have been concatenating?
can you have been concatenating?
can they have been concatenating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I concatenate?
can't you concatenate?
can't he concatenate?
can't we concatenate?
can't you concatenate?
can't they concatenate? 	can't I be concatenating?
can't you be concatenating?
can't he be concatenating?
can't we be concatenating?
can't you be concatenating?
can't they be concatenating? 	can't I have concatenated?
can't you have concatenated?
can't he have concatenated?
can't we have concatenated?
can't you have concatenated?
can't they have concatenated? 	can't I have been concatenating?
can't you have been concatenating?
can't he have been concatenating?
can't we have been concatenating?
can't you have been concatenating?
can't they have been concatenating?