En junio ya habremos terminado el proyecto, pero en julio todavía quedará tiempo para mejorarlo.

Because habremos terminado is the future perfect.

It is formed with:

• haber in the future: habremos
• past participle: terminado

So:

• habremos terminado = we will have finished

It talks about something that will be completed before a certain point in the future. Here, the idea is that by the time we are in June, the project will already be finished.

Both can be possible in Spanish, but they focus on slightly different things.

• en junio = in June, locating the action in that month
• para junio = by June, emphasizing a deadline or target point

In this sentence, En junio ya habremos terminado el proyecto presents June as the future time frame from which the speaker is looking back on the completed action.

A learner might expect para junio because English often says by June we will have finished. That would also sound natural in Spanish, but en junio works well when the speaker means something like once June comes, we’ll already have finished it.

Ya means already.

It reinforces the idea that the project will be finished by that future time. So:

• habremos terminado = we will have finished
• ya habremos terminado = we will already have finished

It makes the completion sound more definite or expected by then.

Here quedar means to remain / to be left.

So:

• quedará tiempo = there will be time left
• more naturally in English: there will still be time

This is a very common use of quedar in Spanish:

• Queda café. = There’s coffee left.
• Quedan dos días. = There are two days left.

So in the sentence, todavía quedará tiempo means that even in July, some time will still remain for further work.

Because todavía means still, while ya means already.

The contrast is important:

• ya habremos terminado = by June, the project will already be finished
• todavía quedará tiempo = in July, there will still be time

So the sentence creates a timeline:

1. by June, the project is finished
2. even in July, extra time remains to improve it

This already / still pairing is very common and natural.

Mejorarlo = to improve it

It is made of:

• mejorar = to improve
• lo = it

The pronoun lo refers to el proyecto.

So:

• para mejorar el proyecto = to improve the project
• para mejorarlo = to improve it

Spanish often attaches object pronouns to the end of an infinitive, which is exactly what happens here.

Because in Spanish, object pronouns can be attached to an infinitive.

So these are both possible in many contexts:

• para mejorarlo
• para lo mejorar ❌

But with para + infinitive, the normal correct form is para mejorarlo.

Spanish allows pronouns to attach to:

• infinitives: mejorarlo
• gerunds: mejorándolo
• affirmative commands: mejóralo

So the attached form here is exactly what you should expect.

Because tiempo here is being used in a general, uncountable sense, like time in English.

So:

• quedará tiempo = there will be time left

If you said un tiempo, it would usually sound more specific or less natural in this context.

Spanish often omits the article with nouns used in a broad, abstract sense:

• hay tiempo = there is time
• no queda dinero = there is no money left

Because pero marks a contrast.

The sentence is not just adding another fact; it is contrasting two ideas that might seem slightly surprising together:

• the project will already be finished in June
• but there will still be time in July to improve it

That contrast is the point of pero.

If you used y, the sentence would sound more like simple addition, and the nuance would be weaker.

Yes, very common.

The pattern is:

• quedar + noun + para + infinitive

Examples:

• Queda trabajo por hacer. = There is work left to do.
• Queda tiempo para descansar. = There is time left to rest.
• Quedará tiempo para revisarlo. = There will be time left to check it.

So quedará tiempo para mejorarlo is a very natural way to say there will be time left to improve it.

Because the two verbs express different relationships to the future.

• habremos terminado = future perfect, because it describes something that will already be completed by that future point
• quedará = simple future, because it describes a state that will exist in July

So the sentence means:

• by June, the finishing will be complete
• in July, time will remain

The future perfect is used for completed-before-future-point actions, while the simple future is used for future facts or states.

Yes, that is very close grammatically, but it sounds less natural in English.

A more natural English version would be:

• By June, we’ll already have finished the project, but in July there will still be time to improve it.

That said, the Spanish structure is very transparent:

• En junio → In June / By June
• ya habremos terminado → we will already have finished
• todavía quedará tiempo → there will still be time left
• para mejorarlo → to improve it

So the literal translation helps you see the grammar, even if it is not the best final English wording.

The subject is nosotros = we, but Spanish leaves it unstated because the verb ending already shows it.

• habremos clearly means we will have

So:

• (Nosotros) habremos terminado el proyecto = We will have finished the project

Spanish often omits subject pronouns unless they are needed for emphasis or clarity.