1
vote
1answer
35 views

“is to” or “is how to”?

Is it better to say "is to" or "is how to"? For example: A challenging problem is to analyse the runtime effects. or should it be: A challenging problem is how to analyse the runtime ...
3
votes
2answers
1k views

Complement or object?

I saw him cross the road. Is cross the road the object of saw? Or is it the complement of him?